27
MCQ (Multiple Correct Answer)
Which of the following methods of preparation of amines will give same number of carbon atoms in the chain of amines as in the reactant?
A
Reaction of nitrite with $\mathrm{LiAlH}_4$
B
Reaction of amide with $\mathrm{LiAlH}_4$ followed by treatment with water
C
Heating alkylhalide with potassium salt of phthalimide followed by hydrolysis
D
Treatment of amide with bromine in aqueous solution of sodium hydroxide.
28
MCQ (Multiple Correct Answer)
Which of the following cannot be prepared by Sandmeyer's reaction?
A
Chlorobenzene
B
Bromobenzene
C
Iodobenzene
D
Fluorobenzene
29
MCQ (Multiple Correct Answer)
Reduction of nitrobenzene by which of the following reagent gives aniline?
A
$\mathrm{Sn} / \mathrm{HCl}$
B
$\mathrm{Fe} / \mathrm{HCl}$
C
$\mathrm{H}_2-\mathrm{Pd}$
D
$\mathrm{Sn} / \mathrm{NH}_4 \mathrm{OH}$
30
MCQ (Multiple Correct Answer)
Which of the following species are involved in the carbylamine test?
A
$\mathrm{R}-\mathrm{NC}$
B
$\mathrm{CHCl}_3$
C
$\mathrm{COCl}_2$
D
$\mathrm{NaNO}_2+\mathrm{HCl}$
31
MCQ (Multiple Correct Answer)
The reagents that can be used to convert benzenediazonium chloride to benzene are ............. .
A
$\mathrm{SnCl}_2 / \mathrm{HCl}$
B
$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}$
C
$\mathrm{H}_3 \mathrm{PO}_2$
D
$\mathrm{LiAlH}_4$