95. In amines, the nitrogen is ………………. hybridized. 96. In amides, the C=O group

Question

95. In amines, the nitrogen is ………………. hybridized. 96. In amides, the C=O group is strongly electron-withdrawing, making the nitrogen very (a) weak base (b) strong base (c) weak acid (d) strong acid (e) electron rich 97. Example of electron donating and electron withdarwing groups are: (a) CH3, NH2 (b) OCH3 and CH3 (c) Cl, NO2 (d) CN, CH3 (e) CH3, CN 98. The product of Hofmann elimination is (a) alkane (b)alkyl halide (c) acyl azide (d) alkene (e) isocyanate 99. Primary arylamines react with nitrous acid (HNO2), yielding stable ——— salts. This reaction is known as …………………………reaction. 100.Base-promoted hydrolysis of an ester is called…………………………… 101.Treatment of a carboxylic acid with an alcohol in the presence of an acid catalyst is known as…………. 102.Nucleophilic acyl substitution is the characteristic reaction of …………………… derivatives. 103.Tetrahedral intermediate is formed in…………………….

Explanation / Answer

95) sp3

96) a) weak base

97) e) CH3 , CN

98) d) alkene

99) diazonium salts , diazotization

100) Saponification

101) esterification

102) acid derivatives

103) acyl substitution

Explanation :

1) amine R - NH2. here nitrogen have one lone pair. 3 bond pairs. so 4 electron pairs. so sp3 hybridization.

2) in C = O withdrawing group, nitrogen can easily donate lone pair .s so this becomes weak.

3) electron donating grops : all alkyl groups, NH2, -OCH3

electron withdrawing groups: Cl- , CN- , NO2-

Related Questions

Navigate

• Browse (All)
• Browse 9
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.