Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 13 Hydrocarbons with Answers Pdf free download. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. We have provided Hydrocarbons Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well.
Q.1 Ethyl benzene cannot be prepared by _____________.
(a) Wurtz Reaction
(b) Wurtz Fittig reaction
(c) Clemmensen Reduction
(d) Carbon
(a) Wurtz Reaction
Q.2 Tetrabromoethane on heating with Zn gives
(a) Ethyl bromide
(b) Ethane
(c) Ethene
(d) Ethyne
(d) Ethyne
Q.3 Propyne on polymerization yields
(a) Mesitylene
(b) Benzene
(c) Ethyl benzene
(d) Propyl benzene
(a) Mesitylene
Q.4 A dibromo derivative of an alkane reacts with sodium metal to form an alicyclic hydrocarbon. The derivative is ______________
(a) 1, 4-dibromobutane
(b) 1, 2-dibromoethane
(c) carbon
(d) none of the above
(a) 1, 4-dibromobutane
Q.5 An organic compound has a triple bond and not double bond. It can be test by
(a) Bromine water
(b) Baeyer reagent
(c) Fehling solution
(d) Ar nonical silver nitrate
(d) Ar nonical silver nitrate
Q.6 A gas decolourised by KMno4 solution but gives no precipitate with ammoniacal cuprous chloride is
(a) Ethene
(b) Propane
(c) Propene
(d) Methane
(a) Ethene
Q.7 Hydrocarbon containing following bond is most reactive
(a) C ≡ C
(b) C = C
(c) C-C
(d) All of these
(a) C ≡ C
Q.8 The treatment of benzene with isobu.ene in the presence of sulphuric acid gives
(a) Isobutyl benzene
(b) Tert-butyl benzene
(c) n-Butyl benzene
(d) No reaction
(b) Tert-butyl benzene
Q.9 Among the following compounds the one that is most reactive towards electrophilic nitration is
(a) Toluene
(b) Benzene
(c) Benzoic Acid
(d) Nitrobenzene
(a) Toluene
Q.10 Which of the following compounds will exhibit geometrical isomerism?
(a) 1-pheny 1-2-butene
(b) 3-phenyl-1-butene
(c) 2-phenyl-1-butene
(d) 1,1-diphenyl-1-propene
(a) 1-pheny 1-2-butene
Q.11 Reaction of HBr with propene in the presence of peroxide gives:
(a) 3 – Bromo propane
(b) Allyl bromide
(c) n – Propyl bromide
(d) Isoproyl bromide
(c) n – Propyl bromide
Q.12 Isopropyl bromide on Wurtz reaction gives
(a) Hexane
(b) Propane
(c) 2, 3 – Dimethylbutane
(d) Neohexane
(c) 2, 3 – Dimethylbutane
Q.13 The position of double bond in alkenes can be located by :
(a) Hydrogenation of oil
(b) Ozonolysis
(c) Photolysis
(d) Hydration
(b) Ozonolysis
Q.14 Which of the following compounds exhibits steroisomerism?
(a) 2-methyl butene-1
(b) 3-methyl butyne-1
(c) 3-methylbutanoic acid
(d) 2-methylbutanoic acid
(d) 2-methylbutanoic acid
Q.15 The angle strain in cyclobutane is
(a) 24°44
(b) 29°16
(c) 19°22
(d) 9°44
(d) 9°44
Q.16 Out of the following which one has the least hindered rotation about carbon-carbon bond.
(a) Ethane
(b) Ethylene
(c) Acetylene
(d) Hexachloroethane
(a) Ethane
Q.17 Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide?
(a) Neopentane
(b) Carbon
(c) Isohexane
(d) Neohexane
(a) Neopentane
Q.18 On mixing certain alkane with chlorine and irradiating it with ultraviolet light, one forms only one monochloro alkane. The alkane could be
(a) Neopentane
(b) Propane
(c) Pentane
(d) Isopentane
(a) Neopentane
Q.19 Aromatic compounds burn with a sooty flame because?
(a) They have a ring structure of carbon atoms
(b) They have a relatively high percentage of hydrogen
(c) They have a relatively high percentage of carbon
(d) They resist reaction with oxygen of air
(c) They have a relatively high percentage of carbon
Q.20 A dibromo derivative of an alkane reacts with sodium metal to form an alicyclic hydrocarbon. The derivative is ______________.
(a) 2, 2-dibromobutane
(b) 1, 1-dibromopropane
(c) 1, 4-dibromobutane
(d) 1, 2-dibromoethane
(c) 1, 4-dibromobutane
Q.21 Which of the following compounds will exhibit geometrical isomerism?
(a) 1 – Phenyl – 2 – butene
(b) 3 – Phenyl – 1 – butene
(c) 2 – Phenyl – 1 butene
(d) 1, 1 – Diphenyl – propene
(a) 1 – Phenyl – 2 – butene
We hope the given NCERT MCQ Questions for Class 11 Chemistry Chapter 13 Hydrocarbons with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Chemistry Hydrocarbons MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.