Amines - 04

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Amines - 04

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Q1. The correct decreasing order of basic strength of thefollowing species is __________ H2O, NH3, OH^–, NH2^– *

1 point

Q2. Which of the following factors affect the basic strength ofamine? (i) Inductive effect (ii) Steric hinderance (iii) Solvation effect (iv) Solubility in organic solvents *

1 point

(ii) and (iii)

(i) and (iv)

(ii) and (iv)

(i), (ii) and (iii)

Q3. Which statement is not true among the following? *

1 point

Amines are bases

They turn red litmus blue

Trimethyl amine is less basic than dimethyl amine

Amines yield alcohols on aqueous hydrolysis

Q4. Which of the following statements about primary amines is ‘False’ ? *

1 point

Alkyl amines are stronger bases than aryl amines

Alkyl amines react with nitrous acid to produce alcohols

Aryl amines react with nitrous acid to produce phenols

Alkyl amines are stronger bases than ammonia

Q5. Mark the correct statement *

1 point

Methylamine is slightly acidic

Methylamine is a stronger base than ammonia

Methylamine is less basic than ammonia

Methylamine forms salts with alkalies

Q6. For Carbylamine reaction, we need hot alcoholic KOH and *

1 point

A primary amine and an alkyl halide

Any primary amine and chloroform

A monoalkylamine and trichloromethane

Chloroform and silver powder

Q7. The compound obtained by heating a mixture of a primary amine and chloroform with ethanolic potassium hydroxide (KOH) is *

1 point

an alkyl cyanide

an amide

a nitro compound

an alkyl isocyanide

Q8. Carbylamine reaction is used for the detection of *

1 point

(a) aliphatic 2° amines

(b) aliphatic 1° amines

(d) Both (b) and (c)

Q9. In the reaction, *

1 point

CO2

NH3

Q10. An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. The compound is *

1 point

CH3NH2

CH3CH2NH2

CH3CH2-NH-CH2CH3

(CH3CH2)3N

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