Haloalkanes and Haloarenes  MCQs

MCQs of Haloalkanes and Haloarenes

Showing 41 to 50 out of 112 Questions
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41.
Chlorobenzene reacts with sodium metal in presence of dry ether to prepare diphenyl the name of the reaction is _____
(a) Fittig reaction
(b) Wurtz-fitting reaction
(c) Sandmeyer reaction
(d) Gattermann reaction
Answer:

Option (a)

42.
Which of the following is a nucleophilic substitution reaction ?
(a) HNO3
(b) HI
(c) SO2
(d) H2O
Answer:

Option (a)

43.
Which of the following compounds contain maximum number of π-bonds ?
(a) Bromobenzene
(b) 1, 3-Dibromobenzene
(c) 1, 3, 5-Tribromobenzene
(d) All compounds given have same number of π-bonds.
Answer:

Option (d)

44.
What is 'P' and 'Q' in the following reaction ? R - OH + NaX + 'P' → R - X + 'Q' + H2O
(a) P = NaHSO4, Q = H2SO4
(b) P = SOCl2, Q = SO2 
(c) P = H2SO4 , Q = NaHSO4
(d) P = SO2, Q = SOCl2
Answer:

Option (c)

45.
What is the change in type of hybridisation of carbon atom participating in SN2 reaction at transition state ?
(a) sp2 to sp3
(b) sp3 to sp
(c) sp to sp2
(d) sp3 to sp2
Answer:

Option (d)

46.
What is called CCl2F2 ?
(a) Freon 22
(b) Freon 12
(c) Freon 21
(d) Freon 122
Answer:

Option (b)

47.
Give the correct decreasing order of density of (i) n - C3H7Cl (ii) n - C3H7Br (iii) n - C3H7I
(a) (i) > (ii) > (iii)
(b) (iii) > (ii) > (i)
(c) (iii) < (ii) < (i)
(d) (i) < (ii) < (iii)
Answer:

Option (b)

48.
The degree of halide in isobutyl chloride is _____ .
(a) 4º
(b) 2º
(c) 3º
(d) 1º
Answer:

Option (d)

49.
The hybridization of carbon attached to chlorine in benzyl chloride is _____ .
(a) dsp2
(b) sp3
(c) sp
(d) sp2
Answer:

Option (b)

50.
Which of the following is an example of a germinal Halide ?
(a) 1, 2 dichloropropane
(b) 1, 4 dichlorobutane
(c) 2 - chlorobutane
(d) 1, 1 dichloropropane
Answer:

Option (d)

Showing 41 to 50 out of 112 Questions
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