Amines

Method by which aniline cannot be prepared is

1. degradation of benzamide with bromine in alkaline solution
2. reduction of nitrobenzene with H2/Pd in ethanol
3. potassium salt of phthalimide treated with chlorobenzene followed by hydrolysis with aqueous NaOH solution
4. hydrolysis of phenylisocyanide with acidic solution.

The electrolytic reduction of nitrobenzene in strongly acidic medium produces

1. azobenzene
2. aniline
3. p-aminophenol
4. azoxybenzene.

In the following reaction, the product (A) is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Which of the following will be most stable diazonium salt RN2+X-?

1. CH3N2+X-
2. C6H5N2+X-
3. CH3CH2N2+X-
4. C6H5CH2N2+X-

In the reaction [figure] A is

1. H3PO2 and H2O
2. H+/H2O
3. HgSO4/H2SO4
4. Cu2Cl2

On hydrolysis of a "compound", two compounds are obtained. One of which on treatment with sodium nitrite and hydrochloric acid gives a product which does not respond to iodoform test. The second one reduces Tollens reagent and Fehling's solution. The "compound" is

1. CH3CH2CH2NC
2. CH3CH2CH2CN
3. CH3CH2CH2ON=O
4. CH3CH2CH2CON(CH3)2

Some reactions of amines are given. Which one is not correct?

1. [figure]
2. CH3CH2NH2 + HNO2 CH3CH2OH + N2
3. CH3NH2 + C6H5SO2Cl CH3NHSO2C6H5
4. (CH3)2NH + NaNO2 + HCl (CH3)2N-N=O

An organic compound (C3H9N) (A), when treated with nitrous acid, gave an alcohol and N2 gas was evolved. (A) on warming with CHCl3 and caustic potash gave (C) which on reduction gave isopropylmethylamine. Predict the structure of (A)

1. [figure]
2. CH3CH2-NH-CH3
3. [figure]
4. CH3CH2CH2-NH2

An organic compound A on treatment with NH3 gives B, which on heating gives C. C when treated with Br2 in the presence of KOH produces ethyl amine. Compound A is

1. CH3COOH
2. CH3CH2CH2COOH
3. [figure]
4. CH3CH2COOH

Which of the following compounds is most basic?

1. [figure]
2. [figure]
3. [figure]
4. [figure]