Acidic hydrogen is present in

Important Questions on Unsaturated Hydrocarbons-Alkynes

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 9

Name a reagent which can differentiate $1-$butyne from $2-$butyne through a precipitation reaction.

HARD

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 3

How is acetylene prepared from calcium carbide?

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 7

How would you distinguish ethylene from acetylene? Give one specific test for each.

HARD

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 11

What happens when acetylene is passed through ammoniacal silver nitrate solution? Give equation.

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 12

Suggest a test to distinguish between but$-1-$yne and but$-2-$ene. Give equation.

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 14

Lindlar’s catalyst is

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 15

When propyne is treated with aqueous ${\mathrm{H}}_2{\mathrm{SO}}_4$ in the presence of ${\mathrm{HgSO}}_4$, the major product is

MEDIUM

11th Odisha Board

IMPORTANT

Bureau's Higher Secondary Chemistry Volume-1>Chapter 19 - Unsaturated Hydrocarbons-Alkynes>QUESTIONS>Q 16

The compounds $1-$butyne and $2-$butyne can be distinguished by using