Question

Explain with chemical equation what happens when:
1. Acetylene reacts with bromine water?
2. Hydrogen bromide is added to acetylene.
3. Acetylene is passed in cold dilute alkaline potassium permanganate solution?
4. Hydrolysis of the product obtained by reaction of acetylene and ozone in carbon tetrachloride solution?

Answer 1

(1) When acetylene.reacts with bromine water, it gets decolourized and form dibromo derivative.

(2) When hydrogen bromide is added to acetylene, it forms ethylidene dibromide.

(3) When acetylene is passed in cold dilute alkaline potassium permanganate solution, it gets oxidise to form oxalic acid.

(4) When acetylene reacts with ozone, it forms ozonide which on hydrolysis gives glyoxal and then formic acid.