{"id":14988,"date":"2024-04-01T11:59:41","date_gmt":"2024-04-01T06:29:41","guid":{"rendered":"https:\/\/tsboardsolutions.in\/?p=14988"},"modified":"2024-04-03T15:59:41","modified_gmt":"2024-04-03T10:29:41","slug":"ts-10th-class-physical-science-bits-chapter-12","status":"publish","type":"post","link":"https:\/\/tsboardsolutions.in\/ts-10th-class-physical-science-bits-chapter-12\/","title":{"rendered":"TS 10th Class Physical Science Bits Chapter 12 Carbon and its Compounds"},"content":{"rendered":"

These\u00a0TS 10th Class Physical Science Bits with Answers<\/a> Chapter 12 Carbon and its Compounds will help students to enhance their time management skills.<\/p>\n

TS 10th Class Physical Science Bits Chapter 12 Carbon and its Compounds<\/h2>\n

Question 1.
\nThe number of covalent bonds that a carbon atom can form is ( )
\n(A) 2
\n(B) 4
\n(C) 6
\n(D) 1
\nAnswer:
\n(B) 4<\/p>\n

Question 2.
\nIn excited state a carbon atom gets Its one of the \u20182s\u2019 electrons to ( )
\n(A) 2Px<\/sub>
\n(B) 2Py<\/sub>
\n(C) 2Pz<\/sub>
\n(D) 3s
\nAnswer:
\n(C) 2Pz<\/sub><\/p>\n

Question 3.
\nThe bond angle in methane molecule ( )
\n(A) 109\u00b028′
\n(B) 104\u00b031′
\n(C) 107\u00b048′
\n(D) 120\u00b0
\nAnswer:
\n(A) 109\u00b028′<\/p>\n

Question 4.
\nThe carbon compound having sp2 hybridizatIon ( )
\n(A) CH4<\/sub>
\n(B) C2<\/sub>H4<\/sub>
\n(C) C2<\/sub>H2<\/sub>
\n(D) C4<\/sub>H10<\/sub>
\nAnswer:
\n(B) C2<\/sub>H4<\/sub><\/p>\n

Question 5.
\nAmorphous allotrope of carbon is: ( )
\n(A) graphite
\n(B) diamond
\n(C) sugar charcoal
\n(D) fullerene
\nAnswer:
\n(C) sugar charcoal<\/p>\n

\"TS<\/p>\n

Question 6.
\nThe hardest allotrope of carbon: ( )
\n(A) graphite
\n(B) lamp black
\n(C) diamond
\n(D) fullerene
\nAnswer:
\n(C) diamond<\/p>\n

Question 7.
\nThe number of covalent bonds in pentane s ………………………. . ( )
\n(A) 5
\n(B) 12
\n(C) 16
\n(D) 17
\nAnswer:
\n(D) 17<\/p>\n

Question 8.
\nThe pair of elements which exhibit property of catenation Is ( )
\n(A) carbon & sulphur
\n(B) chlorine & carbon
\n(C) carbon & phosphorus
\n(D) sulphur & phosphonic
\nAnswer:
\n(C) carbon & phosphorus<\/p>\n

Question 9.
\nThe molecular formula of an organic compound Is C2<\/sub>H6<\/sub>. This compound belongs to the following homologous series. ( )
\n(A) alkenes
\n(B) alkynes
\n(C) alkalies
\n(D) amines
\nAnswer:
\n(C) alkalies<\/p>\n

Question 10.
\nThe products obtained in complete combustion of hydrocarbons is ( )
\n(A) CO+H2<\/sub>O
\n(B) CO2<\/sub>+H2<\/sub>
\n(C) CO2<\/sub>+H2<\/sub>O
\n(D) CO+H2<\/sub>
\nAnswer:
\n(C) CO2<\/sub>+H2<\/sub>O<\/p>\n

Question 11.
\nThe compound that reacts with chlorine in presence of sunlight to form chloroform is ( )
\n(A) CH3<\/sub>Cl
\n(B) CH2<\/sub>Cl
\n(C) CH2<\/sub>Cl2<\/sub>
\n(D) CCl4<\/sub>
\nAnswer:
\n(C) CH2<\/sub>Cl2<\/sub><\/p>\n

Question 12.
\nThe word root used for saturated hydrocarbons is ……………………. . ( )
\n(A) yn
\n(B) -one
\n(C) al
\n(D) an
\nAnswer:
\n(D) an<\/p>\n

Question 13.
\nThe secondary suffix used to denote functional group ketone is ( )
\n(A) -one
\n(B) -ol
\n(C) al
\n(D) olc acid
\nAnswer:
\n(A) -one<\/p>\n

Question 14.
\nThe formula of esters – ( )
\n(A) -CHO
\n(B) -COOR
\n(C) -C=O
\n(D) -COOH
\nAnswer:
\n(B) -COOR<\/p>\n

Question 15.
\nThe name of the compound with formula CH2<\/sub> = CH- -CH-CH3<\/sub> is ()
\n(A) pentanol
\n(B) heptanol
\n(C) dichloroethane
\n(D) trichloromethane
\nAnswer:
\n(A) pentienol<\/p>\n

\"TS<\/p>\n

Question 16.
\nMost of the aromatic compounds burn with ( )
\n(A) blue colour flame
\n(B) red colour flame
\n(C) sooty flame
\n(D) non-luminous flame
\nAnswer:
\n(C) sooty flame<\/p>\n

Question 17.
\nOpen chain hydro-carbons are also called –
\n(A) aromatic hydrocarbons
\n(B) aliphatic hydrocarbons
\n(C) alkenes
\n(D) alkynes
\nAnswer:
\n(B) aliphatic hydrocarbons<\/p>\n

Question 18.
\nThe general formula of Alkenes is ( )
\n(A) Cn<\/sub>H2n+2<\/sub>
\n(B) Cn<\/sub>H2n<\/sub>
\n(C) Cn<\/sub>H2n-2<\/sub>
\n(D) Cn<\/sub>H2n- 1<\/sub>
\nAnswer:
\n(B) Cn<\/sub>H2n<\/sub><\/p>\n

Question 19.
\nHydrocarbnc containing at least one triple bond between carbon atoms are called ( )
\n(A) Alkenes
\n(B) Alkanes
\n(C) Aikynes
\n(D) Aldehydes
\nAnswer:
\n(C) Aikynes<\/p>\n

Question 20.
\nThe general molecular formula of a carboxylic add is ………………….. . ( )
\n(A) R-COOH
\n(B) R-OH
\n(C) -COOR
\n(D) -NH2<\/sub>
\nAnswer:
\n(A) R-COOH<\/p>\n

Question 21.
\nIf one hydrogen atom is replaced from NH3<\/sub> by an alkyl group we get – ( )
\n(A) secondary amines
\n(B) tertiary amines
\n(C) primary amines
\n(D) hexo amines
\nAnswer:
\n(C) primary amines<\/p>\n

Question 22.
\nThe isomer of n-butane is ( )
\n(A) dichiobutane
\n(B) isobutane
\n(C) tertiary butane
\n(D) primary butane
\nAnswer:
\n(B) isobutane<\/p>\n

Question 23.
\nCarbon compounds having same molecular formula but different properties are known as: ( )
\n(A) allotropes
\n(B) Isomers
\n(C) homologues
\n(D) salt family
\nAnswer:
\n(B) Isomers<\/p>\n

Question 24.
\nUnsaturated hydrocarbons with multiple bonds undergo ( )
\n(A) catalytic reactions
\n(B) reversible reactions
\n(C) double displacement reactions
\n(D) addition reactions
\nAnswer:
\n(D) addition reactions<\/p>\n

Question 25.
\nThe common name of ethanol is …………………………….. . ( )
\n(A) methyl alcohol
\n(B) methyl acetate
\n(C) ethyl alcohol
\n(D) ethyl salicilate
\nAnswer:
\n(C) ethyl alcohol<\/p>\n

Question 26.
\nThe common sources of ethnol : ( )
\n(A) wheat
\n(B) barley
\n(C) corn
\n(D) all of A, B and C
\nAnswer:
\n(D) all of A, B and C<\/p>\n

Question 27.
\nThe important Impurity added to ethanol to make it undrinkable is ( )
\n(A) methanol
\n(B) formaldehyde
\n(C) acetone
\n(D) benzene
\nAnswer:
\n(A) methanol<\/p>\n

Question 28.
\nCough syrups contain as important solvent : ( )
\n(A) formaldehyde
\n(B) acetone
\n(C) ethanol
\n(D) methanol
\nAnswer:
\n(C) ethanol<\/p>\n

Question 29.
\nEthanoic add is also known as – ( )
\n(A) formic acid
\n(B) acetic acid
\n(C) oxalic acid
\n(D) citric acid
\nAnswer:
\n(B) acetic acid<\/p>\n

Question 30.
\nEthanoic add reacts with sodium carbonate and releases ( )
\n(A) H2<\/sub>
\n(B) CO2<\/sub>
\n(C) SO2<\/sub>
\n(D) NO2<\/sub>
\nAnswer:
\n(B) CO2<\/sub><\/p>\n

Question 31.
\nThe negative value of logarithm of dissociation constant is denoted as: ( )
\n(A) pH
\n(B) pka<\/sub>
\n(C) pln<\/sub>
\n(D) nlx<\/sup>
\nAnswer:
\n(B) pka<\/sub><\/p>\n

Question 32.
\nThe reaction between carboxylic acid and an alcohol in the presence of con. H2<\/sub>SO4<\/sub> to form sweet smelHng substance is called …………….. . ( )
\n(A) fermentation
\n(B) saponification
\n(C) distillation
\n(D) esterification
\nAnswer:
\n(D) esterification<\/p>\n

Question 33.
\nThe ester used to remove nail polish is ……………………. . ( )
\n(A) ethyl acetate
\n(B) methyl acetate
\n(C) tribromo acetate
\n(D) benzol acetate
\nAnswer:
\n(B) methyl acetate<\/p>\n

\"TS<\/p>\n

Question 34.
\nEsters of higher fatty acids and trihydroxy alcohol are known as ( )
\n(A) glycerol
\n(B) glycol
\n(C) glucose
\n(D) gasoline
\nAnswer:
\n(A) glycerol<\/p>\n

Question 35.
\nA solution in which the s\u00f4lute particles dispersed in the solvent are less than 1 nm in diameter is called ( )
\n(A) colloidal solution
\n(B) saturated solution
\n(C) true solution
\n(D) buffer solution
\nAnswer:
\n(C) true solution<\/p>\n

Question 36.
\nA spherical aggregate of soap molecules in water is called ……………………….. . ( )
\n(A) foam
\n(B) fog
\n(C) suspension
\n(D) micelle
\nAnswer:
\n(D) micelle<\/p>\n

Question 37.
\nThese carbon compounds make oil and dirt present on the cloth come out into water- ( )
\n(A) perfumes
\n(B) soaps
\n(C) detergents
\n(D) both B&C
\nAnswer:
\n(D) both B&C<\/p>\n

Question 38.
\nThe polar end of soap molecule is ……………………. in nature : ( )
\n(A) hydrophilic
\n(B) hydrophobic
\n(C) hydrogenic
\n(D) greasy
\nAnswer:
\n(A) hydrophilic<\/p>\n

Question 39.
\nSaturated hydrocarbons undergo : ( )
\n(A) addition reactions
\n(B) substitution reactions
\n(C) reversible reactions
\n(D) double displacement reactions
\nAnswer:
\n(B) substitution reactions<\/p>\n

Question 40.
\nCarbon compounds with identical molecular formula but different structural formulae are called- ( )
\n(A) catalysts
\n(B) homologues
\n(C) isotopes
\n(D) Isomers
\nAnswer:
\n(D) Isomers<\/p>\n

Question 41.
\nThe number of sigma bonds in ethane (C2<\/sub>H6<\/sub>) molecule ( )
\n(A) 3
\n(8) 5
\n(C) 7
\n(D) 6
\nAnswer:
\n(C) 7<\/p>\n

Question 42.
\nThe IUPAC name of CH2<\/sub>=CH group is ( )
\n(A) vinyl
\n(B) ethyl
\n(C) ethenyl
\n(D) ethynyl
\nAnswer:
\n(C) ethenyl<\/p>\n

Question 43.
\nn-butane and iso-butane are a pair of ( )
\n(A) isomers
\n(B) allotropes
\n(C) homologues
\n(D) Isotopes
\nAnswer:
\n(A) isomers<\/p>\n

Question 44.
\nDimethyl ether is the isomer of ( )
\n(A) methyl alcohol
\n(B) ethyl alcohol
\n(C) diethyl ether
\n(D) ethanol
\nAnswer:
\n(B) ethyl alcohol<\/p>\n

\"TS<\/p>\n

Question 45.
\nOne or more hydrogen atoms of alkanes can be replaced by halogens, nitro group and sulphonic acid group. Such reactions are known as – ( )
\n(A) substitution reactions
\n(B) addition reactions
\n(C) decomposition reactions
\n(D) catalytic reactions
\nAnswer:
\n(A) substitution reactions<\/p>\n

Question 46.
\nWhich of the following reacts with water to give ethane? ( )
\n(A) C2<\/sub>H5<\/sub>OH
\n(B) C2<\/sub>H5<\/sub>-O- C2<\/sub>H5<\/sub>
\n(C) CH3<\/sub>OH
\n(D) C2<\/sub>H5<\/sub>MgBr
\nAnswer:
\n(D) C2<\/sub>H5<\/sub>MgBr<\/p>\n

Question 47.
\nThe final product In the chlorination of methane is ( )
\n(A) CCl4<\/sub>
\n(B) CHCl3<\/sub>
\n(C) CH2<\/sub>Cl2<\/sub>
\n(D) CH3<\/sub>Cl
\nAnswer:
\n(A) CCl4<\/sub><\/p>\n

Question 48.
\nWhich of the following hydrocarbon is a liquid at room temperature? ( )
\n(A) ethane
\n(B) butane
\n(C) hexane
\n(D) methane
\nAnswer:
\n(C) hexane<\/p>\n

Question 49.
\nWhich of the following \u00a1s a planar molecule? ( )
\n(A) CH3<\/sub>-CH3<\/sub>
\n(B) CH2<\/sub>=CH2<\/sub>
\n(C) CH C-CH3<\/sub>
\n(D) cyclohexane
\nAnswer:
\n(B) CH2<\/sub>=CH2<\/sub><\/p>\n

Question 50.
\nPropyne and propene can be distinguished by – ( )
\n(A) Conc.H2<\/sub>SO4<\/sub>
\n(B) Sodium metal
\n(C) AgNO3<\/sub> in Ammonia
\n(D) dli KMnO4<\/sub>
\nAnswer:
\n(C) AgNO3<\/sub> in Ammonia<\/p>\n

Question 51.
\nC-C bond length in diamond ( )
\n(A) 1.4A\u00b0
\n(B) 1.42A\u00b0
\n(C) 1.54A\u00b0
\n(D) 1.3A\u00b0
\nAnswer:
\n(C) 1.54A\u00b0<\/p>\n

Question 52.
\nUnsaturated hydrocarbons among the following : ( )
\n(A) propane
\n(B) ethene
\n(C) ethane
\n(D) butane
\nAnswer:
\n(B) ethene<\/p>\n

Question 53.
\nFor artificial ripening of fruits, the hydrocarbon used is – ( )
\n(A) acetylene
\n(B) methane
\n(C) butane
\n(D) ethane
\nAnswer:
\n(A) acetylene<\/p>\n

Question 54.
\nThe allotrope of carbon which has tetrahedral structure ( )
\n(A) graphite
\n(B) coke
\n(C) animal charcoal
\n(D) Diamond
\nAnswer:
\n(D) Diamond<\/p>\n

Question 55.
\nSoap is obtained by the hydrolysis of oil in the presence of a base. This process is called ( )
\n(A) fermentation
\n(B) esterification
\n(C) saponification
\n(D) fractionation
\nAnswer:
\n(C) saponification<\/p>\n

Question 56.
\nGas used is welding is – ( )
\n(A) ethylene
\n(B) ethane
\n(C) benzene
\n(D) ethyne
\nAnswer:
\n(D) ethyne<\/p>\n

Question 57.
\nThe arrangement of carbon atoms In graphite is – ( )
\n(A) tetrahedral
\n(B) hexagonal rings
\n(C) octagonal rings
\n(D) nanogonal rings
\nAnswer:
\n(B) hexagonal rings<\/p>\n

\"TS<\/p>\n

Question 58.
\nName of the compound having molecular formula C6<\/sub>H12<\/sub> ( )
\n(A) hexane
\n(B) hexyne
\n(C) hexene
\n(D) butane
\nAnswer:
\n(C) hexene<\/p>\n

Question 59.
\nEthanol-containing pyridine is called – ( )
\n(A) absolute alcohol
\n(B) rectified spirit
\n(C) beer
\n(D) denatured spirit
\nAnswer:
\n(D) denatured spirit<\/p>\n

Question 60.
\nAllotrope of carbon among the following : ( )
\n(A) propane
\n(B) coke
\n(C) soap
\n(D) ethene
\nAnswer:
\n(B) coke<\/p>\n

Question 61.
\nAlkenes are more reactive than alkanes. This is due to ( )
\n(A) double bond
\n(B) single bond
\n(C) hydrogen bond
\n(D) triple bond
\nAnswer:
\n(A) double bond<\/p>\n

Question 62.
\nSoaps are – ( )
\n(A) fatty alcohols
\n(B) triesters
\n(C) salts of fatty acids
\n(D) fatty alcohol sulphates
\nAnswer:
\n(C) salts of fatty acids<\/p>\n

Question 63.
\nThe valency of carbon in carbon compounds: ( )
\n(A) 2
\n(B) 3
\n(C) 4
\n(D) 5
\nAnswer:
\n(C) 4<\/p>\n

Question 64.
\nDenatured spirit contains: ( )
\n(A) methyl alcohol
\n(B) acetic acid
\n(C) acetol aldehyde
\n(D) tartaric acid
\nAnswer:
\n(A) methyl alcohol<\/p>\n

Question 65.
\nGraphite is used as lubricant because of its ( )
\n(A) metallic lustre
\n(B) soapy touch
\n(C)low density
\n(D) conductivity
\nAnswer:
\n(B) soapy touch<\/p>\n

Question 66.
\nThe functional group of alcohol is ( )
\n(A) -COOH
\n(B) -COOR
\n(C) CHO
\n(D) -OH
\nAnswer:
\n(D) -OH<\/p>\n

Question 67.
\nThe product obtained when ethylene reacts with hydrogen is ( )
\n(A) C2<\/sub>H6<\/sub>
\n(B) C2<\/sub>H4<\/sub>OH
\n(C) C2<\/sub>H8<\/sub>
\n(D) C2<\/sub>H2<\/sub>
\nAnswer:
\n(A) C2<\/sub>H6<\/sub><\/p>\n

Question 68.
\nAn example of aromatic hydrocarbon is ………………………. . ( )
\n(A) acetylene
\n(B) propane
\n(C) benzene
\n(D) acetone
\nAnswer:
\n(C) benzene<\/p>\n

Question 69.
\nA series of compounds In which the same functional group substitutes for hydrogen In a carbon compound is called – ( )
\n(A) octagonal series
\n(B) homologous series
\n(C) halogen series
\n(D) active element series
\nAnswer:
\n(B) homologous series<\/p>\n

\"TS<\/p>\n

Question 70.
\nThe succeeding member of the homologous series that follows C4<\/sub>H8<\/sub> is ( )
\n(A) C5<\/sub>H12<\/sub>
\n(B) C5<\/sub>H8<\/sub>
\n(C) C5<\/sub>H10<\/sub>
\n(D) C6<\/sub>H12<\/sub>
\nAnswer:
\n(C) C5<\/sub>H10<\/sub><\/p>\n

Question 71.
\nUnsaturated carbon compounds usually give ( )
\n(A) yellow flame
\n(B) blue flame
\n(C) orange flame
\n(D) green flame
\nAnswer:
\n(A) yellow flame<\/p>\n

Question 72.
\nAnimal fats are harmful to health because they contain – ( )
\n(A) saturated hydrocarbons
\n(B) unsaturated alcohols
\n(C) unsaturated fatty acids
\n(D) saturated fatty acids
\nAnswer:
\n(D) saturated fatty acids<\/p>\n

Question 73.
\nAlcohols react with sodium metal and liberate: ( )
\n(A) hydrogen
\n(B) carbon dioxide
\n(C) oxygen
\n(D) chlorine
\nAnswer:
\n(A) hydrogen<\/p>\n

Question 74.
\nThe sweet-smelling substances formed when carboxylic acid reacts with alcohols ( )
\n(A) soaps
\n(B) tinctures
\n(C) esters
\n(D) fuels
\nAnswer:
\n(C) esters<\/p>\n

Question 75.
\nThese are usually utilised to make shampoos ( )
\n(A) esters
\n(B) phenols
\n(C) aspirin
\n(D) shampoos
\nAnswer:
\n(D) shampoos<\/p>\n

Question 76.
\nAcetylene can be prepared by the action of water on ………………… . ( )
\n(A) Mg3<\/sub>N2<\/sub>
\n(B) Al4<\/sub>C3<\/sub>
\n(C) CaC2<\/sub>
\n(D) CaH2<\/sub>
\nAnswer:
\n(B) Al4<\/sub>C3<\/sub><\/p>\n

Question 77.
\nThe reagent that can be used to distinguish between alkenes and alkanes is ……………….. .
\n(A) Chlorine
\n(B) Hydrogen
\n(C) Flurolne
\n(D) Bromine
\nAnswer:
\n(D) Bromine<\/p>\n

Question 78.
\nAn Important reaction that ethylene can undergo: ( )
\n(A) displacement
\n(B) addition
\n(C) substitution
\n(D) reversible
\nAnswer:
\n(C) substitution<\/p>\n

Question 79.
\nIf all the hydrogen atoms In methane are displaced by chlorine, the compound formed is ( )
\n(A) chloroform
\n(B) carbon tetrachloride
\n(C) methylene chloride
\n(D) methyl chloride
\nAnswer:
\n(B) carbon tetrachloride<\/p>\n

Question 80.
\nAnother name for Alkanes is ( )
\n(A) olefins
\n(B) polythenes
\n(C) paraffins
\n(D) acetylenes
\nAnswer:
\n(C) paraffins<\/p>\n

\"TS<\/p>\n

Question 81.
\nThe number of hydrogen atoms present in butane. ( )
\n(A) 4
\n(B) 8
\n(C) 12
\n(D) 10
\nAnswer:
\n(D) 10<\/p>\n

Question 82.
\nWhen an amide is heated after adding a base, the gas liberated Is ( )
\n(A) HCl
\n(B) NO2<\/sub>
\n(C) NH3<\/sub>
\n(D) SO2<\/sub>
\nAnswer:
\n(C) NH3<\/sub><\/p>\n

Question 83.
\nThe maximum valency of carbon is ………………………. . ( )
\n(A) 4
\n(B) 3
\n(C) 2
\n(D) 5
\nAnswer:
\n(A) 4<\/p>\n

Question 84.
\nThe property of carbon atoms by means of which they form covalent bonds between themselves and form long chains are closed rings Is …………………….. . ( )
\n(A) Isomerism
\n(B) saponification
\n(C) fermentation
\n(D) catenation
\nAnswer:
\n(D) catenation<\/p>\n

Question 85.
\nThe number of isomers having molecular formula C4<\/sub>H10<\/sub> is ( )
\n(A) 4
\n(B) 2
\n(C) 6
\n(D) 3
\nAnswer:
\n(B) 2<\/p>\n

Question 86.
\nThe molecular formula of Formal dehyde is ……………………… . ( )
\n(A) CH3<\/sub>CHO
\n(b) CH3<\/sub>COOH
\n(C) CH3<\/sub>OH
\n(D) HCHO
\nAnswer:
\n(D) HCHO<\/p>\n

Question 87.
\nA solid fuel among the following ( )
\n(A) butane
\n(B) gobar gas
\n(C) coke
\n(D) diesel
\nAnswer:
\n(C) coke<\/p>\n

Question 88.
\nThe hydrocarbon formed by hydrolysis of alumInium carbide is ( )
\n(A) methane
\n(B) acetylene
\n(C) ethane
\n(D) pentane
\nAnswer:
\n(A) methane<\/p>\n

Question 89.
\nbenzene Is formed by passing the following compound through hot pipe: ( )
\n(A) C2<\/sub>H2<\/sub>
\n(B) CH4<\/sub>
\n(C) C2<\/sub>H4<\/sub>
\n(D) C4<\/sub>H10<\/sub>
\nAnswer:
\n(A) C2<\/sub>H2<\/sub><\/p>\n

Question 90.
\nThe hydrocarbon used In preparation of plastics : ( )
\n(A) alkanes
\n(B) alkenes
\n(C) alkynes
\n(D) esters
\nAnswer:
\n(B) alkenes<\/p>\n

Question 91.
\nIUPAC name of img ( )
\n(A) Chlorobutane
\n(B) 2 – Chlorobutane
\n(C) 2, 3 – chloroquine
\n(D) 2, 3-dichlorobutane
\nAnswer:
\n(D) 2, 3-dichlorobutane<\/p>\n

\"TS<\/p>\n

Question 92.
\nIf 2 ml of acetic add was added slowly in drops to 5 ml of water then we will notice ( )
\n(A) The acid forms a separate layer on the top of water.
\n(B) Water forms a separate layer on the top of the acid.
\n(C) Formation of a clear and homogenous solution.
\n(D) Formation of a pink and clear solution.
\nAnswer:
\n(C) Formation of a clear and homogenous solution.<\/p>\n

Question 93.
\nWhen acetic acid reacts with ethyl alcohol, we add conc. H2<\/sub>SO4<\/sub>, it acts as …………………… and the processes Called ( )
\n(A) oxidizing agent, saponification
\n(B) dehydrating agent, esterification
\n(C) reducing agent, esterification
\n(D) Acid & esterification
\nAnswer:
\n(B) dehydrating agent, esterification<\/p>\n

Question 94.
\nOxidant undergoes reaction. ( )
\n(A) oxidation
\n(B) reduction
\n(C) combustion
\n(D) hydration
\nAnswer:
\n(A) oxidation<\/p>\n

Question 95.
\nThe number of hybrid orbitals formed in sp4<\/sup> hybridization ( )
\n(A) 2
\n(B) 3
\n(C) 4
\n(D) 5
\nAnswer:
\n(D) 5<\/p>\n

Question 96.
\nThe number or sigma and pi bonds present In ethyne is ( )
\n(A)2,3
\n(B)5,1
\n(C)1,5
\n(D)3,2
\nAnswer:
\n(D)3,2<\/p>\n

Question 97.
\n2 ml of ethanoic acid was taken in each of the three test tubes A, B and C and 2 ml, 4 ml and 8 ml water was added to them, respectively. A clear solution is obtained in: ( )
\n(A) Test tube A only
\n(B) Test tubes A & B only
\n(C) Test tubes B and C only
\n(D) All the test tubes
\nAnswer:
\n(D) All the test tubes<\/p>\n

Question 98.
\nA few drops of ethano4c acid were added to solid sodium carbonate, The possible results of the actions are ( )
\n(A) A hissing sound was evolved
\n(B) Brown fumes evolved
\n(C) Brisk effervescence occurred
\n(D) A pungent-smelling gas evolved
\nAnswer:
\n(C) Brisk effervescence occurred<\/p>\n

Question 99.
\nWhich of the following is not an allotrophic Form of carbon? ( )
\n(A) Fluorine
\n(B) Fuilerence
\n(C) Diamond
\n(D) Graphite
\nAnswer:
\n(A) Fluorine<\/p>\n

Question 100.
\n2C2<\/sub>H6<\/sub>+7O2<\/sub> 4CO2<\/sub>+6H2<\/sub>O+energy. This is …………………… type of reaction. ( )
\n(A) reduction
\n(B) oxidation
\n(C) combustion
\n(D) addition
\nAnswer:
\n(C) combustion<\/p>\n

Question 101.
\nBad conductor of electricity is ( )
\n(A) Graphite
\n(B) Graphen
\n(C) Diamond
\n(D) Nanotube
\nAnswer:
\n(C) Diamond<\/p>\n

Question 102.
\nIUPAC name of \"TS ( )
\n(A) 1-Hydroxy-heptane-6-one
\n(B) 7-Hydroxy-heptane-2-one
\n(C) 6-Hydroxy-hexane-2 – one
\n(D) 1-Hydroxy-hexane-5-one
\nAnswer:
\n(B) 7-Hydroxy-heptane-2-one<\/p>\n

Question 103.
\nWhich of the following is a good conductor of heat and electricity? ( )
\n(A) Anthracite
\n(B) Charcoal
\n(C) Diamond
\n(D) Graphite
\nAnswer:
\n(D) Graphite<\/p>\n

\"TS<\/p>\n

Question 104.
\nChief component of cooking as is ( )
\n(A) butane
\n(B) methane
\n(C) ethane
\n(D) octane
\nAnswer:
\n(A) butane<\/p>\n

Question 105.
\nA dilute solution of ethanoic acid in water is called ( )
\n(A) Tincture of iodine
\n(B) Fehlings solution
\n(C) vinegar
\n(D) Tollens reagent
\nAnswer:
\n(C) vinegar<\/p>\n

Question 106.
\nEthanol on oxidation gives ( )
\n(A) Ethane
\n(B) Formalin
\n(C) Ethanoic acid
\n(D) Methane
\nAnswer:
\n(C) Ethanoic acid<\/p>\n

Question 107.
\nn-butane and isobutane are ………………….. . ( )
\n(A) alkenes
\n(B) alkynes
\n(C) isomers
\n(D) polymers
\nAnswer:
\n(C) isomers<\/p>\n

Question 108.
\nWhat property of carbon allows It to form a large number of carbon compounds? ( )
\n(A) Tetra valency
\n(B) catenation
\n(C) electronegativity
\n(D) electropositivity
\nAnswer:
\n(C) electronegativity<\/p>\n

Question 109.
\nCompounds made up of carbon and hydrogen only are called ……………. .( )
\n(A) alkanes
\n(B) alkenes
\n(C) alkynes
\n(D) hydrocarbons
\nAnswer:
\n(D) hydrocarbons<\/p>\n

Question 110.
\nOpen chain saturated hydrocarbons are called ……………. . ( )
\n(A) paraffins
\n(B) alkenes
\n(C) alkynes
\n(D) alkyl groups
\nAnswer:
\n(A) paraffins<\/p>\n

Question 111.
\nDiamond and graphite are ……………. . ( )
\n(A) Isomers
\n(B) allotropes
\n(C) homologous
\n(D) metals
\nAnswer:
\n(B) allotropes<\/p>\n

Question 112.
\nC60<\/sub> has arranged by ……………. pentagons and – hexagons. ( )
\n(A) 20, 12
\n(B) 12, 20
\n(C) 21, 20
\n(D) 12, 01
\nAnswer:
\n(B) 12, 20<\/p>\n

Question 113.
\nCarbon compounds containing double and triple bonds are called ……………. . ( )
\n(A) saturated hydrocarbons
\n(B) unsaturated hydrocarbons
\n(C) semi saturated hydrocarbons
\n(D) hydrocarbons
\nAnswer:
\n(B) unsaturated hydrocarbons<\/p>\n

Question 114.
\nA very dilute solution of ethanoic acid is ……………. . ( )
\n(A) ethyne
\n(B) ethane
\n(C) vinegar
\n(D) ethene
\nAnswer:
\n(C) vinegar<\/p>\n

Question 115.
\nWhen sodium metal Is dropped in ethanol ……………. gas will be released. ( )
\n(A) hydrogen
\n(B) sodium vapour
\n(C) ethane
\n(D) ethylene
\nAnswer:
\n(A) hydrogen<\/p>\n

Question 116.
\nNumber of single covalent bonds in ammonia are ……………. .( )
\n(A) 2
\n(B) 3
\n(C) 4
\n(D) 1
\nAnswer:
\n(B) 3<\/p>\n

Question 117.
\nType of reactions shown by alkanes is ………………………. . ()
\n(A) addition
\n(B) thermal
\n(C) substitution
\n(D) chain
\nAnswer:
\n(C) substitution<\/p>\n

Question 118.
\nThe distance between two graphite layers is ………………………. . ()
\n(A) 3\u00c5
\n(B) 4\u00c5
\n(C) 3.6\u00c5
\n(D) 3.35\u00c5
\nAnswer:
\n(D) 3.35\u00c5<\/p>\n

Question 119.
\n\u2018Carboxytic acid\u2019 functional group is ………………………. . ()
\n(A) -OH
\n(B) -OCH
\n(C) -COOH
\n(D) -C=O
\nAnswer:
\n(C) -COOH<\/p>\n

Question 120.
\nGeneral formula of saturated hydrocarbon is ………………………. . ()
\n(A) Cn<\/sub>H2<\/sub>n
\n(B) Cn<\/sub>H2n+2<\/sub>
\n(C) Cn<\/sub>H2n-2<\/sub>
\n(D) Cn<\/sub>H2<\/sub>n
\nAnswer:
\n(B) Cn<\/sub>H2n+2<\/sub><\/p>\n

Question 121.
\nAlkane hydrolysis of ester-producing soaps is called ………………………. . ()
\n(A) carbonation
\n(B) esterlilcatlon
\n(C) calcination
\n(D) saponification
\nAnswer:
\n(D) saponification<\/p>\n

Question 122.
\nIn soap molecule, the end with \"TS is called ………………………. .
\n(A) hydrophilic end
\n(B) hydrophobic end
\n(C) micelle
\n(D) dirt
\nAnswer:
\n(A) hydrophilic end<\/p>\n

Question 123.
\nIUPAC name of glycerol is ………………………….. . ( )
\n(A) propane
\n(B) propanol
\n(C) propane -1, 2, 3 – diol
\n(D) propane -1, 2, 3 – troll
\nAnswer:
\n(C) propane -1, 2, 3 – diol<\/p>\n

Question 124.
\nThe carboxylic acid used to preserve pickles is ()
\n(A) Methanoic acid
\n(B) Propanoic acid
\n(C) Ethanoic acid
\n(D) Butanoic acid
\nAnswer:
\n(C) Ethanoic acid<\/p>\n

Question 125.
\nThe first two members of the alkene senes is ……………… .
\n(A) methane, ethene
\n(B) methane, ethane
\n(C) ethene, propene
\n(D) ethyne, propyne
\nAnswer:
\n(C) ethene, propene<\/p>\n

Question 126.
\n……………………………. is also known as marsh gas. ( )
\n(A) Methane
\n(B) Ethane
\n(C) Propane
\n(D) Butane
\nAnswer:
\n(A) Methane<\/p>\n

Question 127.
\nNatural gas is a mixture of gaseous ( )
\n(A) hydrocarbons
\n(B) esters
\n(C) acids
\n(D) bases
\nAnswer:
\n(A) hydrocarbons<\/p>\n

\"TS<\/p>\n

Question 128.
\n………………………… reacts with sodium metal to produce hydrogen gas. ( )
\n(A) Alcohol
\n(B) Acid
\n(C) Ester
\n(D) Ketone
\nAnswer:
\n(A) Alcohol<\/p>\n

Question 129.
\nSynthetic detergent is called ……………………….. detergent
\n(A) washing detergent
\n(B) surf
\n(C) soapless
\n(D) odourless
\nAnswer:
\n(C) soapless<\/p>\n

Question 130.
\n…………………………… is better than soap for washing clothes in hard water. ( )
\n(A) Detergent
\n(B) Synthetic detergent
\n(C) Surf
\n(D) Soap water
\nAnswer:
\n(B) Synthetic detergent<\/p>\n

Question 131.
\nThe form of carbon which is known as black lead is …………………… . ( )
\n(A) coal
\n(B) charcoal
\n(C) graphite
\n(D) graphene
\nAnswer:
\n(C) graphite<\/p>\n

Question 132.
\nCarbon compounds have usually low melting points and boiling points because they are …………………… in nature. ( )
\n(A) covalent
\n(B) ionic
\n(C) chemical
\n(D) gases
\nAnswer:
\n(A) covalent<\/p>\n

Question 133.
\nCompounds of carbon with hydrogen alone are called ……………….. . ( )
\n(A) hydroxy
\n(B) carboxy
\n(C) carbohydrates
\n(D) hydrocarbons
\nAnswer:
\n(D) hydro carbons<\/p>\n

Question 134.
\nEthene and ethyne are examples of ……………… hydrocarbons. ( )
\n(A) saturated
\n(B) unsaturated
\n(C) semi saturated
\n(D) supersaturated
\nAnswer:
\n(B) unsaturated<\/p>\n

Question 135.
\nEthyne has ………………………… carbon-hydrogen single bonds. ( )
\n(A) 3
\n(B) 4
\n(C) 2
\n(D) 1
\nAnswer:
\n(C) 2<\/p>\n

Question 136.
\nThe IUPAC name of acetylene is …………………….. . ( )
\n(A) ethane
\n(B) ethene
\n(C) ethyne
\n(D) ethyl
\nAnswer:
\n(C) ethyne<\/p>\n

Question 137.
\nThe next homologue of C2<\/sub>H5<\/sub>OH is ( )
\n(A) C3<\/sub>H7<\/sub>OH
\n(B) C3<\/sub>H6<\/sub>OH
\n(C) C4<\/sub>H7<\/sub>OH
\n(D) CH6<\/sub>OH
\nAnswer:
\n(A) C3<\/sub>H7<\/sub>OH<\/p>\n

\"TS<\/p>\n

Question 138.
\nThe sodium salt of a long chain fatty acids is called …………………. . ( )
\n(A) sodium salt
\n(B) acidic fat
\n(C) detergent
\n(D) soap
\nAnswer:
\n(D) soap<\/p>\n

Question 139.
\nHexane ………………….. . ( )
\n(A) C6<\/sub>H6<\/sub>
\n(B) C6<\/sub>H12<\/sub>
\n(C) C6<\/sub>H14<\/sub>
\n(D) C6<\/sub>H10<\/sub>
\nAnswer:
\n(C) C6<\/sub>H14<\/sub><\/p>\n

Question 140.
\nButene …………………….. . ( )
\n(A) C4<\/sub>H6<\/sub>
\n(B) C4<\/sub>H10<\/sub>
\n(C) C6<\/sub>H8<\/sub>
\n(D) C4<\/sub>H4<\/sub>
\nAnswer:
\n(A) C4<\/sub>H6<\/sub><\/p>\n","protected":false},"excerpt":{"rendered":"

These\u00a0TS 10th Class Physical Science Bits with Answers Chapter 12 Carbon and its Compounds will help students to enhance their time management skills. TS 10th Class Physical Science Bits Chapter 12 Carbon and its Compounds Question 1. The number of covalent bonds that a carbon atom can form is ( ) (A) 2 (B) 4 … Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/posts\/14988"}],"collection":[{"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/comments?post=14988"}],"version-history":[{"count":2,"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/posts\/14988\/revisions"}],"predecessor-version":[{"id":14992,"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/posts\/14988\/revisions\/14992"}],"wp:attachment":[{"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/media?parent=14988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/categories?post=14988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tsboardsolutions.in\/wp-json\/wp\/v2\/tags?post=14988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}