amines

Question 1

aliphatic amines

Answer 1

N attached to straight/ branched chain (including non- aromatic rings

Question 2

aromatic amines

Answer 2

N attached to aromatic ring

Question 3

primary amine with Nh2 at end of chain

Answer 3

…… amine

Question 4

primary amine with Nh2 on carbon not at end

Answer 4

..(number amine attached to).. amine…. alkyl chain.. .

2- amino propane

Question 5

secondary/ tertiary amine containing same alkyl group

Answer 5

di/ tri…(Same alkyl group)… amine.

di methyl amine

Question 6

secondary/ ternary amine containing different alkyl group

Answer 6

N-….extra group … longest chain.. amine

N- methyl ethyl amine

Question 7

Amines behave as bases why

Answer 7

lone pair on N atom will accept H+

Question 8

amines + acid –> (HCL)

Answer 8

salt

Nh3+cl-

Question 9

formation of primary amines

Answer 9

1- formation of salt

haloalkane +nh3–> salt (Nh3+cl-)

2- formation of amine

salt +Na0H –> amine + h20 + NACl

Question 10

formation of amines conditions

Answer 10

Nh3 in ethanol

Question 11

formation of secondary amines

Answer 11

1- formation of salt

haloalkane +nh3–> salt (2chains - NH2+cl-)

2- formation of amine

salt +Na0H –> amine + h20 + NACL

Question 12

ethanol used

Answer 12

prevenet reaction with h20 – substutate to forms a alcohol

Question 13

excess ammonia used

Answer 13

prevents further substitution (avoids making secondary or tertiary amines)

Question 14

formation of aromatic amines

Answer 14

Question 15

explain why Nh2 on molecule can react with dilute HCL to form a salt

Answer 15

the lone pair on nitrogen can accept a proton