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63
Subjective

How will you carry out the following conversion?

Explanation

Conversion of benzene to p-nitroaniline can be done as

64
Subjective

How will you carry out the following conversion?

Explanation

Conversion of aniline to m-bromo nitrobenzene can be completed as

65
Subjective

How will you carry out the following conversions?

Explanation

(i) Conversion of aniline to 3, 5-dibromonitrobenzene can be completed as

(ii) Conversion (A) given below is same as in part (i) given above after that reaction (B) can be carried out.

66
Subjective

Match the reactions given in Column I with the statements given in Column II.

Column I Column II
A. Ammonolysis 1. Amine with lesser number of carbon atoms
B. Gabriel phthalimide synthesis 2. Detection test for primary amines.
C. Hofmann bromamide reaction 3. Reaction of phthalimide with KOH and R-X
D. Carbylamine reaction 4. Reaction of alkylhalides with NH$_3$

Explanation

A. $\rightarrow(4)$ B. $\rightarrow$ (3) C. $\rightarrow$ (1) D. $\rightarrow(2)$

Reaction Statements
A. Ammonolysis Reaction of alkylhalide with NH$_3$
$\mathrm{R}-\mathrm{X} \longrightarrow \mathrm{RNH}_2+\mathrm{HCl}$
B. Gabriel phthalimide synthesis Reaction of phthalimide with KOH and R-X.
C. Hofmann bromamide reaction Amine with lesser number of carbon atoms.
$\mathrm{RCONH}_2 \xrightarrow{\mathrm{NaOX}} R \mathrm{NH}_2$
D. Carbylamine reaction Detection test of primary amines.

67
Subjective

Match the compounds given in Column I with the items given in Column II.

Column I Column II
A. Benzene sulphonyl chloride 1. Zwitter ion
B. Sulphanilic acid 2. Hinsberg reagent
C. Alkyl diazonium salts 3. Dyes
D. Aryl diazoinium salts 4. Conversion to alcohols

Explanation

A. $\rightarrow(2)$ B. $\rightarrow$ (1) C. $\rightarrow(4)$ D. $\rightarrow(3)$

Compounds Items
A. Benzene sulphonyl chloride Hinsberg reagent
B. Sulphanilic acid Zwitter ion (dipolar ion)
C. Alkyl diazonium salts Conversion to alcohols
$\mathrm{R}-\mathrm{N}_2^{+} \mathrm{X}^{-} \xrightarrow{\mathrm{H}_2 \mathrm{O}} \mathrm{ROH}$
D. Aryl diazonium salts Dyes