Home
Class 12
CHEMISTRY
To prepare quaternary ammonium compounds...

To prepare quaternary ammonium compounds we heat _____ with a large excess of alky1 halide .

A

ammonia

B

primary amine

C

secondary amine

D

any of these

Text Solution

Verified by Experts

The correct Answer is:
D
`NH_(3)+4RXoverset(Delta)rarrR_(4)overset(+)NX+ 3HX`
`RNH_(2)+3RXoverset(Delta)rarrR_(4)overset(+)NX+2HX`
`R_(2)NH+2RXoverset(Delta)rarrR_(4)overset(+)NX+HX`
We can also use a tertiary amine to yield a quaternary compound For example ethyltrimethylammonium iodide can be prepared by heating trimethylamine with ethy1 iodide
`(CH_(3))_(3)N+C_(2)H_(5)I overset(Delta)rarr(CH_(3))_(3)overset(+)NC_(2)H_(5)Ibar` .
Promotional Banner

Topper's Solved these Questions

  • AMINES

    R SHARMA|Exercise Follow -up Test 12|1 Videos

  • AMINES

    R SHARMA|Exercise Follow -up Test 13|1 Videos

  • AMINES

    R SHARMA|Exercise Follow -up Test 10|1 Videos

  • ALCOHOL, PHENOL AND ETHERS

    R SHARMA|Exercise ETHERS level IV|7 Videos

  • BIOMOLECULES

    R SHARMA|Exercise Archives|47 Videos

Similar Questions

Explore conceptually related problems

Preparation of alkyl halides-1

Ammonium compound which on heating does not give NH_3 is

Phenol on heating with NaOH followed by reaction with alky1 halide gives

Quaternary ammonium halide reacts with moist silver oxide to produce _________

When ammonium cyanate is heated, we get:

(a) An ambident nucleophile is: (i) Ammonia (ii) Ammonium ion (iii) Chloride ion (iv) Nitrite ion (b) Haloalkanes and haloarenes are organohalogen compounds. (i) Suggest a method for the preparation of alkyl chloride. (ii) Aryl halides are less reactive towards nucleophilic substitution reactions. Give reasons.

(i) Write the balanced equations for the reactions when ammonium sulphate is heated with a mixture of nitric oxide and nitrogen dioxide. (ii) Aqueous ammonia is added dropwise to a solution of copper sulphate till is in excess.

Knowledge Check

  • The general formula of quaternary ammonium compound is

    A
    `R-NH_(2)`
    B
    `R_(3)N`
    C
    `R_(4)N^(+)X^(-)`
    D
    `NH_(4)X`

  • Quaternay ammonium halide is heated with moist silver oxide gives

    A
    quaternary ammonium hydroxide
    B
    ammoniun hydroxide
    C
    alcholes
    D
    alkene

  • Ammonium compound which on heating does not give NH_3 is

    A
    `NH_4NO_2`
    B
    `(NH_4)_2CO_3`
    C
    `(NH_4)_2SO_4`
    D
    `NH_4Cl`