621.

Ethylamine (C₂H₅NH₂) can be obtained from N-ethipthalimide on treatment with

• CaH₂

• H₂O

• NaBH₄

• NH₂NH₂

Aniline dissolved in dilute HCl is reacted with sodium nitrite at 0ºC. This solution was added dropwise to a solution containing equimolar mixture of aniline and phenol in dil. HCl. The structure of the major product is

The major product ‘Y’ in the following reaction is :

Which of the following is NOT a correct method if the preparation of benzylamine from cyanobenzene ?

• H₂/ Ni

• (i) LiAlH₄

  (ii) H₃O⁺

• (i) SnCl₂ + HCl(gas)

  (ii) NaBH₄

• (i) HCl/H₂O 

  (ii) NaBH₄

The correct statement regarding the basicity of arylamines is

• Arylamines are generally more basic than alkylamines because the nitrogen lone pair electrons are not delocalized by interaction with the aromatic ring pi-electron system

• Arylamines are generally more basic than alkylamines, because of aryl group

• Arylamines are generally more basic than alkylamines because the nitrogen atom in arylamines is sp-hydridized.

• Arylamines are generally more basic than alkylamines because the nitrogen atom in arylamines is sp-hydridized.

In the reaction,


X and Y are

• X=2-butyne; Y= 3-hexyne

• X=2-butyne;Y=2-hexyne

• X=1-butyne ;Y = 2-hexyne

• X=1-butyne ;Y = 2-hexyne

Consider the nitration of benzene using mixed conc. H₂SO₄ and HNO₃. If a large amount of KHSO₄ is added to the mixture, the rate of nitration will be

• slower

• uncharge

• doubled

• doubled

The product formed by the reaction of an aldehyde with a primary amine is

• Ketone

• Carboxylic acid

• Aromatic acid

• Aromatic acid

The electrolytic reduction of nitrobenzene in strongly acidic medium produces

• p-aminophenol

• azoxybenzene

• azobenzene

• aniline

In the following reaction, the product (A) is