Haloalkanes and Haloarenes  MCQs

MCQs of Haloalkanes and Haloarenes

Showing 71 to 80 out of 112 Questions
5 6 7 8 9 10
71.
The rate of the second order reaction depends on _____ .
(a) concentration of neucleophile
(b) only concentration of substrate
(c) concentration of product
(d) concentration of two reactants
Answer:

Option (d)

72.
Williamson synthesis is _____ .
(a) SN reaction
(b) SN1 reaction
(c) SN2 reaction
(d) None of the above
Answer:

Option (c)

73.
Addition reaction of alkene with hydrogen halide is known as _____ .
(a) Hydration
(b) Halogenation
(c) Sandmeyer reaction
(d) Hydrohalogenation
Answer:

Option (d)

74.
Which of the following is a free radical Halogenation reaction ?
(a) Benzene converted to bromobenzene
(b) Phenol converted to chlorobenzene
(c) Benzene diazonium chloride converted to chlorobenzene
(d) Propane converted to 1-chloropropane and 2-chloropropane
Answer:

Option (d)

75.
By which name the reaction CH3Br + AgF → CH3F + AgBr, is known ?
(a) Grignard
(b) Fittig
(c) Wurtz
(d) Swartz
Answer:

Option (d)

76.
Which of the following has higher SN2 reactivity ?
(a) 2-bromo propane
(b) 2-bromo-2-methyl butane
(c) 1-bromo propane
(d) 2-bromo-2-methyl propane
Answer:

Option (c)

77.
The electron attracting group (-NO2) is in both ortho and para positions in chlorobenzene and substitution of Cl- by : OH- group takes place at high temperature like 368 K. How much product is obtained ?
(a) 45%
(b) 76%
(c) 93%
(d) 55%
Answer:

Option (b)

78.
Chlorobenzene can be prepared by reacting aniline with : _____ .
(a) Hydrochloric acid
(b) Chlorine in presence of anhydrous AlCl3
(c) Cuprous chloride
(d) Nitrous acid following by heating with cuprous chloride
Answer:

Option (d)

79.
By which reaction hexane can be prepared from 1-chloropropane ?
(a) Wurtz reaction
(b) Wurtz - fitting reaction
(c) Finkelstein reaction
(d) Swartz reaction
Answer:

Option (a)

80.
What is 'A' in the following reaction ?

A + NaOH → CHCl3 + HCOONa + H2O

(a) Chloroform
(b) Chloral hydrate
(c) Chloral
(d) Carbon tetrachloride
Answer:

Option (b)

Showing 71 to 80 out of 112 Questions
5 6 7 8 9 10