CBSE Class 11 Chemistry Chapter 13 Hydrocarbons Multiple Choice Questions with Answers. MCQ Questions Class 11 Chemistry Hydrocarbons with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Chemistry Hydrocarbons MCQs with Answers to know their preparation level.
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MCQ Questions Class 11 Chemistry Hydrocarbons with Answers - Set - 5
Question 1:
Question. The order of decreasing reactivity towards an electrophilic reagent, for the following would be
(i) benzene (ii) toluene
(iii) chlorobenzene (iv) phenol
(a) (ii) > (iv) > (i) > (iii)
(b) (iv) > (iii) > (ii) > (i)
(c) (iv) > (ii) > (i) > (iii)
(d) (i) > (ii) > (iii) > (iv)
Correct Answer – (C)
Question 2 :
Question. In Friedel-Crafts alkylation, besides AlCl3 the other reactants are
(a) C6H6 + CH3Cl
(b) C6H6 + CH4
(c) C6H6 + NH3
(d) C6H6 + CH3COCl
Correct Answer – (A)
Question 3 :
Question. In Friedel-Crafts reaction, toluene can be prepared by
(a) C6H6 + CH3Cl
(b) C6H5Cl + CH4
(c) C6H6 + CH2Cl2
(d) C6H6 + CH3COCl
Correct Answer – (A)
Question 4 :
Question. The correct order of reactivity towards theelectrophilic substitution of the compounds aniline (I), benzene (II) and nitrobenzene (III) is
(a) III > II > I
(b) II > III > I
(c) I < II > III
(d) I > II > III
Correct Answer – (D)
Question 5 :
Question. Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount of KHSO4is added to the mixture, the rate of nitration will be
(a) unchanged
(b) doubled
(c) faster
(d) slower.
Correct Answer – (D)
MCQ Questions Class 11 Chemistry Hydrocarbons with Answers
Question 6 :
Question. Which one of these is not compatible with arenes?
(a) Electrophilic additions
(b) Delocalisation of p-electrons
(c) Greater stability
(d) Resonance
Correct Answer – (A)
Question 7 :
Question. The reactive species in the nitration of benzene is
(a) NO3
(b) HNO3
(c) NO2 +
(d) NO2–
Correct Answer – (C)
Question 8 :
Question. Electrophile in the case of chlorination of benzene in the presence of FeCl3 is
(a) Cl
(b) FeCl3
(c) Cl+
(d) Cl–
Correct Answer – (C)
Question 9 :
Question. Nitrobenzene can be prepared from benzene byusing a mixture of conc. HNO3 and conc. H2SO4. In the mixture, nitric acid acts as a/an
(a) acid
(b) base
(c) catalyst
(d) reducing agent.
Correct Answer – (B)
Question 10 :
Question. Which of the following can be used as the halide component for Friedel–Crafts reaction?
(a) Chlorobenzene
(b) Bromobenzene
(c) Chloroethene
(d) Isopropyl chloride
Correct Answer – (D)
- NCERT Solutions Class 11 Chemistry Chapter 1 : Some Basic Concepts of Chemistry
- NCERT Solutions Class 11 Chemistry Chapter 2 : Structure Of The Atom
- NCERT Solutions Class 11 Chemistry Chapter 3 : Classification of Elements and Periodicity in Properties
- NCERT Solutions Class 11 Chemistry Chapter 4 : Chemical Bonding and Molecular Structure
- NCERT Solutions Class 11 Chemistry Chapter 5 : States of Matter
- NCERT Solutions Class 11 Chemistry Chapter 6 : Thermodynamics
- NCERT Solutions Class 11 Chemistry Chapter 7 : Equilibrium
- NCERT Solutions Class 11 Chemistry Chapter 8 : Redox Reactions
- NCERT Solutions Class 11 Chemistry Chapter 9 : Hydrogen
- NCERT Solutions Class 11 Chemistry Chapter 10 : The s-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 11 : The p-Block Elements
- NCERT Solutions Class 11 Chemistry Chapter 12 : Organic Chemistry: Some Basic Principles and Techniques
- NCERT Solutions Class 11 Chemistry Chapter 13 : Hydrocarbons
- NCERT Solutions Class 11 Chemistry Chapter 14 : Environmental Chemistry
