{"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 Question 1. Question 2. Question 3. Question 4. Question 5. <\/p>\n Question 6. Question 7. Question 8. Question 9. Question 10. Question 11. Question 12. Question 13. Question 14. Question 15. <\/p>\n Question 16. Question 17. Question 18. Question 19. Question 20. Question 21. Question 22. Question 23. Question 24. Question 25. Question 26. Question 27. Question 28. Question 29. Question 30. Question 31. Question 32. Question 33. <\/p>\n Question 34. Question 35. Question 36. Question 37. Question 38. Question 39. Question 40. Question 41. Question 42. Question 43. Question 44. <\/p>\n Question 45. Question 46. Question 47. Question 48. Question 49. Question 50. Question 51. Question 52. Question 53. Question 54. Question 55. Question 56. Question 57. <\/p>\n Question 58. Question 59. Question 60. Question 61. Question 62. Question 63. Question 64. Question 65. Question 66. Question 67. Question 68. Question 69. <\/p>\n Question 70. Question 71. Question 72. Question 73. Question 74. Question 75. Question 76. Question 77. Question 78. Question 79. Question 80. <\/p>\n Question 81. Question 82. Question 83. Question 84. Question 85. Question 86. Question 87. Question 88. Question 89. Question 90. Question 91. <\/p>\n Question 92. Question 93. Question 94. Question 95. Question 96. Question 97. Question 98. Question 99. Question 100. Question 101. Question 102. Question 103. <\/p>\n Question 104. Question 105. Question 106. Question 107. Question 108. Question 109. Question 110. Question 111. Question 112. Question 113. Question 114. Question 115. Question 116. Question 117. Question 118. Question 119. Question 120. Question 121. Question 122. Question 123. Question 124. Question 125. Question 126. Question 127. <\/p>\n Question 128. Question 129. Question 130. Question 131. Question 132. Question 133. Question 134. Question 135. Question 136. Question 137. <\/p>\n Question 138. Question 139. Question 140. 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}]}}TS 10th Class Physical Science Bits Chapter 12 Carbon and its Compounds<\/h2>\n
\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
\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
\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
\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
\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
\nThe hardest allotrope of carbon: ( )
\n(A) graphite
\n(B) lamp black
\n(C) diamond
\n(D) fullerene
\nAnswer:
\n(C) diamond<\/p>\n
\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
\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
\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
\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
\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
\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
\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
\nThe formula of esters – ( )
\n(A) -CHO
\n(B) -COOR
\n(C) -C=O
\n(D) -COOH
\nAnswer:
\n(B) -COOR<\/p>\n
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\nCough syrups contain as important solvent : ( )
\n(A) formaldehyde
\n(B) acetone
\n(C) ethanol
\n(D) methanol
\nAnswer:
\n(C) ethanol<\/p>\n
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\nUnsaturated hydrocarbons among the following : ( )
\n(A) propane
\n(B) ethene
\n(C) ethane
\n(D) butane
\nAnswer:
\n(B) ethene<\/p>\n
\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
\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
\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
\nGas used is welding is – ( )
\n(A) ethylene
\n(B) ethane
\n(C) benzene
\n(D) ethyne
\nAnswer:
\n(D) ethyne<\/p>\n
\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
\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
\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
\nAllotrope of carbon among the following : ( )
\n(A) propane
\n(B) coke
\n(C) soap
\n(D) ethene
\nAnswer:
\n(B) coke<\/p>\n
\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
\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
\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
\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
\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
\nThe functional group of alcohol is ( )
\n(A) -COOH
\n(B) -COOR
\n(C) CHO
\n(D) -OH
\nAnswer:
\n(D) -OH<\/p>\n
\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
\nAn example of aromatic hydrocarbon is ………………………. . ( )
\n(A) acetylene
\n(B) propane
\n(C) benzene
\n(D) acetone
\nAnswer:
\n(C) benzene<\/p>\n
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\nAnother name for Alkanes is ( )
\n(A) olefins
\n(B) polythenes
\n(C) paraffins
\n(D) acetylenes
\nAnswer:
\n(C) paraffins<\/p>\n
\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
\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
\nThe maximum valency of carbon is ………………………. . ( )
\n(A) 4
\n(B) 3
\n(C) 2
\n(D) 5
\nAnswer:
\n(A) 4<\/p>\n
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\nOxidant undergoes reaction. ( )
\n(A) oxidation
\n(B) reduction
\n(C) combustion
\n(D) hydration
\nAnswer:
\n(A) oxidation<\/p>\n
\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
\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
\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
\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
\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
\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
\nBad conductor of electricity is ( )
\n(A) Graphite
\n(B) Graphen
\n(C) Diamond
\n(D) Nanotube
\nAnswer:
\n(C) Diamond<\/p>\n
\nIUPAC name of ( )
\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
\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
\nChief component of cooking as is ( )
\n(A) butane
\n(B) methane
\n(C) ethane
\n(D) octane
\nAnswer:
\n(A) butane<\/p>\n
\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
\nEthanol on oxidation gives ( )
\n(A) Ethane
\n(B) Formalin
\n(C) Ethanoic acid
\n(D) Methane
\nAnswer:
\n(C) Ethanoic acid<\/p>\n
\nn-butane and isobutane are ………………….. . ( )
\n(A) alkenes
\n(B) alkynes
\n(C) isomers
\n(D) polymers
\nAnswer:
\n(C) isomers<\/p>\n
\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
\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
\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
\nDiamond and graphite are ……………. . ( )
\n(A) Isomers
\n(B) allotropes
\n(C) homologous
\n(D) metals
\nAnswer:
\n(B) allotropes<\/p>\n
\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
\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
\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
\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
\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
\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
\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
\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
\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
\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
\nIn soap molecule, the end with is called ………………………. .
\n(A) hydrophilic end
\n(B) hydrophobic end
\n(C) micelle
\n(D) dirt
\nAnswer:
\n(A) hydrophilic end<\/p>\n
\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
\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
\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
\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
\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
\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
\nSynthetic detergent is called ……………………….. detergent
\n(A) washing detergent
\n(B) surf
\n(C) soapless
\n(D) odourless
\nAnswer:
\n(C) soapless<\/p>\n
\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
\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
\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
\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
\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
\nEthyne has ………………………… carbon-hydrogen single bonds. ( )
\n(A) 3
\n(B) 4
\n(C) 2
\n(D) 1
\nAnswer:
\n(C) 2<\/p>\n
\nThe IUPAC name of acetylene is …………………….. . ( )
\n(A) ethane
\n(B) ethene
\n(C) ethyne
\n(D) ethyl
\nAnswer:
\n(C) ethyne<\/p>\n
\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
\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
\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
\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":"