Amines

Question 1

Benadryl contains

Answer 1

Tertiary amine grp

Question 1

Adrenaline and ephedrine contains

Answer 1

Secondary amine grp

Question 2

In trimrthyl amine the bond angle is

Answer 2

108°

Question 3

Toluidine is

Answer 3

Methyl amine

Question 4

Rn of Fe + HCl is preferred because

Answer 4

FeCl2 formed gets hydrolyzed to release Hcl this only a small amount of Hcl is required To intiate the rn

Question 5

In ammonolysisi who act as nucleophile

Answer 5

Primary amine obtained by

Question 6

In ammonolysis primary amine can be obtained by using

Answer 6

Large excess of ammonia

Question 7

In Hoffmann degradation migration of alkyl grp takes place from

Answer 7

Carbonyl carbon of an amide to nitrogen atom

Question 8

In Hoffmann degradation 1 Br2 needs

Answer 8

4 NaOH

Question 9

Lower aliphatic amines are gases with

Answer 9

Fishy oduour

Question 10

Anneline and other arylamines are colourless but become coloured when they undergo

Answer 10

Oxidation

Question 11

Tertiary molecules don not have

Answer 11

Intermolecular association due to lack of H atom

Question 12

Aliphatic amines are stronger bases than

Answer 12

Ammonia

Question 13

Aromatic aminesa are less basic than

Answer 13

Ammonia

Question 13

Aliphatic amines are more basic than

Answer 13

Ammonia

Question 14

In aqueous phase substituted ammines are stabilized by

Answer 14

+I effect and salvation effect the salvation effect

Question 15

Which is more dtsble anneline or annelium ion

Answer 15

Anneline

Question 15

Amines on reaction with carnoxylic acids form

Answer 15

Salt at room temp

Question 15

In acetylation pyridine is used because

Answer 15

To remove HCl formed and to keep equilibrium to right hand side

Question 15

Isocyanides are

Answer 15

Foul smelljng

Question 15

Primary amines liberats which gas with NaNO2 +HCl

Answer 15

N2

Question 15

Distinguishing tests for amines is

Answer 15

Rn with nitrous acid

Question 16

Hinsberg reagent is

Answer 16

C6H5SO2CL benzene sulphonyl chloride

Question 17

Is N,N- diethyl benzene sulpjknamide soluble in alkali

Answer 17

Since it does not contain h atom it is not double

Question 18

Which amines does not react either benzene sulphonyl chloride

Answer 18

3°

Question 18

These days benzene sulphonyl chloride is replaced by

Answer 18

P- toluenesulphonyl chloride

Question 18

Hinsberg reagent converts 1° amine to

Answer 18

2°

Question 18

Is benzene sulphonamide soluble in alkali

Answer 18

The hydrogen attached with benzene sulphonamide is highly acidic in nature due to the presence of strong electron withdrawing sulphonyl grp , hence it is soluble in alkali

Question 18

Why is meta product formed during nitration of anneline

Answer 18

In strongly acidic medium the anneline is protonated to gorm annelinium ion , which is meta firectingbn hence meta products are Aldo obtained

Question 18

Why anneline does not undergo Friedel crafts alkylation

Answer 18

Due to salt formation with AlCl3 which is a Lewis acid used in the reaction as catalyst

Question 18

What is the solubility of benzene diazonium chloride

Answer 18

Soluble and stable when water is cold but reacts with water when warmed

Question 18

Benzenediazonium fluroborate is

Answer 18

Water insoluble and stable at room temp

Question 18

Treating the benzenediaxonium with Cu2Cl2/ HX [Cu(I)]is termed as

Answer 18

Sandmeyer reaction

Question 18

Treating benzeneduazonium with Cu powder / HX is termed as

Answer 18

Gattermann rn

Question 18

Which has more yield sandmeyer or gattermann

Answer 18

Sandmeyer

Question 18

When aeene diazonium chloride is heated with fluroboric acid ,arene diazonium fluroborate is precipitated which on heating forms

Answer 18

Aryl fluoride

Question 18

P- hydroxy azobenzene is

Answer 18

Orange dye

Question 18

P hydroxy Amino benzene is

Answer 18

Yellow dye

Question 18

Tertiary amines like trimethyl amine are used as

Answer 18

Insect attractants