NEET Chemistry Hydrocarbons MCQs Set C

Refer to NEET Chemistry Hydrocarbons MCQs Set C provided below available for download in Pdf. The MCQ Questions for Full Syllabus Chemistry with answers are aligned as per the latest syllabus and exam pattern suggested by NEET, NCERT and KVS. Multiple Choice Questions for Hydrocarbons are an important part of exams for Full Syllabus Chemistry and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for NEET Full Syllabus Chemistry and also download more latest study material for all subjects

MCQ for Full Syllabus Chemistry Hydrocarbons

Full Syllabus Chemistry students should refer to the following multiple-choice questions with answers for Hydrocarbons in Full Syllabus.

Hydrocarbons MCQ Questions Full Syllabus Chemistry with Answers

 

 

Question:  When CH3CH2CHCl2 is treated with NaNH2 , the product formed is

  • a) CH3– CH = CH2
  • b) CH3– C ≡ CH
  • c)

    NEET Chemistry Hydrocarbons Online Test Set E-Q52-3

  • d)

    NEET Chemistry Hydrocarbons Online Test Set E-Q52-4

Answer:  CH3– C ≡ CH

 

Question: 2-Bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is

  • a) trans-pent-2-ene
  • b) Pent-1-ene
  • c) 2-ethoxypentane
  • d) cis-pent-2-ene

Answer: trans-pent-2-ene

 

Question:  In the following reaction

NEET Chemistry Hydrocarbons Online Test Set E-Q55

the product ‘X’ is

  • a) C6H5CH2OCH2C6H5
  • b) C6H5CH2OH
  • c) C6H5CH3
  • d) C6H5CH2CH2C6H5

Answer:  C6H5CH3

 

Question:  When 3, 3-dimethyl 2-butanol is heated with H2SO4 , the major product obtained is

  • a) 2, 3-dimethyl 2-butene
  • b) cis and trans isomers of 2, 3-dimethyl 2-butene
  • c) 2, 3-dimethyl 1-butene
  • d) 3, 3-dimethyl 1-butene

Answer: 2, 3-dimethyl 2-butene

 

Question:  Identify Z in the sequence of reaction

NEET Chemistry Hydrocarbons Online Test Set E-Q57

  • a)

    NEET Chemistry Hydrocarbons Online Test Set E-Q57-1

  • b) CH3– CH2– CH2– CH2– Br
  • c)

    NEET Chemistry Hydrocarbons Online Test Set E-Q57-3

  • d) None of these

Answer:  CH3– CH2– CH2– CH2– Br

 

Question:  In the following reaction

NEET Chemistry Hydrocarbons Online Test Set E-Q58

The major product is

  • a)

    NEET Chemistry Hydrocarbons Online Test Set E-Q58-1

  • b)

    NEET Chemistry Hydrocarbons Online Test Set E-Q58-2

  • c)

    NEET Chemistry Hydrocarbons Online Test Set E-Q58-3

  • d)

    NEET Chemistry Hydrocarbons Online Test Set E-Q58-4

Answer:

NEET Chemistry Hydrocarbons Online Test Set E-Q58-3

 

Question:  What products are formed when the following compound is treated with Br2 in the presence of FeBr3?

NEET Chemistry Hydrocarbons Online Test Set E-Q59

  • a)

    NEET Chemistry Hydrocarbons Online Test Set E-Q59-1

  • b)

    NEET Chemistry Hydrocarbons Online Test Set E-Q59-2

  • c)

    NEET Chemistry Hydrocarbons Online Test Set E-Q59-3

  • d)

    NEET Chemistry Hydrocarbons Online Test Set E-Q59-4

Answer:

NEET Chemistry Hydrocarbons Online Test Set E-Q59-3

 

 

Question: One of the following which does not observe the anti-Markownikoff’s addition of HBr, is

  • a) Pent-2-ene
  • b) Propene
  • c) But-2-ene
  • d) But-1-ene

Answer: But-2-ene

 

Question:  Which of the compounds with molecular formula C5H10 yields acetone on ozonolysis?

  • a) 3-methylbut-1-ene
  • b) Cyclopentane
  • c) 2-methylbut-1-ene
  • d) 2-methylbut-2-ene

Answer: 2-methylbut-2-ene

 

More Questions............................................

 

Question:  In preparation of alkene from alcohol using Al2O3 which is the effective factor?

  • a) Porosity of Al2O3 
  • b) Temperature
  • c) Concentration
  • d) Surface area of Al2O3

Answer: Temperature

 

Question: Dihedral angle in staggered form of ethane is

  • a) 0° 
  • b) 120°
  • c) 60°
  • d) 180°

Answer: 60°

 

Question: 2-butene shows geometrical isomerism due to

  • a) Restricted rotation about double bond
  • b) Free rotation about double bond
  • c) Free rotation about single bond
  • d) Chiral carbon

Answer: Restricted rotation about double bond

 

Question: Gammexane is

  • a) Bromobenzene
  • b) Benzyl Chloride
  • c) Chlorobenzene
  • d) Benzene hexachloride

Answer: Benzene hexachloride

 

Question: In Friedel-Crafts reaction, toluene can be prepared by

  • a) C6H6+ CH3Cl 
  • b) C6H5Cl + CH4
  • c) C6H6+ CH2Cl2   
  • d) C6H6+ CH3COCl

Answer:  C6H6+ CH3Cl 

 

Question:  When acetylene is passed through dil. H2SO4 in the presence of HgSO4 , the compound formed is

  • a) Acetic acid
  • b) Ketone
  • c) Ether
  • d) Acetaldehyde

Answer: Acetaldehyde

 

Question: In the commercial gasolines, the type of hydrocarbons which are more desirable is

  • a) Linear unsaturated hydrocarbon
  • b) Toluene
  • c) Branched hydrocarbon
  • d) Straight-chain hydrocarbon

Answer: Branched hydrocarbon

 

Question: Which one of these is not compatible with arenes?

  • a) Electrophilic additions
  • b) Delocalisation of π-electrons
  • c) Greater stability
  • d) Resonance

Answer: Electrophilic additions

 

Question: The cylindrical shape of alkyne is due to

  • a) Two sigma C–C and one π C–C bonds  
  • b) One sigma C–C and two π C–C bonds
  • c) Three sigma C–C bonds   
  • d) Three π C–C bonds

Answer:  One sigma C–C and two π C–C bonds

 

Question: Which of the following is used as an anti-knocking material?

  • a) Glyoxal
  • b) Freon
  • c) T.E.L.
  • d) Ethyl alcohol

Answer: T.E.L.

 

Question: The bond length between central carbon atom and other carbon atom is minimum in

  • a) Propene
  • b) Propyne
  • c) Propane
  • d) Pentane

Answer: Propyne

 

Question: Geometrical isomers differ in

  • a) Position of functional group
  • b) Position of atoms
  • c) Spatial arrangement of atoms
  • d) Length of carbon chain

Answer: Spatial arrangement of atoms

 

Question: Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by

  • a) Oxidation
  • b) Cracking
  • c) Distillation under reduced pressure
  • d) Hydrolysis

Answer: Cracking

 

Question: Eclipsed form of ethane has higher energy due to

  • a) Torsional strain
  • b) Steric strain
  • c) Angle strain
  • d) Both (1) & (2)

Answer: Both (1) & (2)

 

Question: The difference in potential energy between eclipsed and staggered form of ethane is

  • a) 4 kJ/mol
  • b) 12.55 kJ/mol
  • c) 2 kJ/mol
  • d) 44 kJ/mol

Answer: 12.55 kJ/mol

 

Question: Which one is most stable?

  • a) Cyclopropane
  • b) Cyclobutane
  • c) Cyclopentane
  • d) Cyclohexane

Answer: Cyclohexane

 

Question: In iodination ; for preparation of iodomethane compound used is

  • a) HIO3
  • b) HgO
  • c) Both (1) & (2)
  • d) HI

Answer: Both (1) & (2)

 

Question:  In chlorination the relation rate of abstraction of H in 3°, 2° and 1°C atom respectively

  • a) 5 : 3.8 : 2
  • b) 5 : 3.8 : 1
  • c) 1600 : 82 : 1
  • d) 1600 : 5 : 82

Answer: 5 : 3.8 : 1

 

Question: In which alkane isomerization will not occur?

  • a) C2H6 
  • b) C4H10
  • c) C5H10
  • d) C6H14

Answer:  C2H6 

 

Question:  C6H5CH2CH2CH3  is when oxidised in the presence of alk. KMnO4, the product obtained is

  • a) C6H5CHO
  • b) C6H5COOH
  • c) C6H5CH2CH2CHO
  • d) C6H5COCH3

Answer:  C6H5COOH

 

Question: Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by

  • a) Oxidation
  • b) Cracking
  • c) Distillation under reduced pressure
  • d) Hydrolysis

Answer: Cracking

Chemistry in Everyday Life
NEET UG Chemistry in Everyday Life MCQs

MCQs for Hydrocarbons Chemistry Full Syllabus

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