Distinguish between Ethane and ethene (using alkaline potassium permanganate solution)

Write balanced equation for preparation of:

(i) ethane from sodium propionate.

(ii) ethanol from monochloroethane and aq. sodium hydroxide.

The I.U.P.A.C. name of acetylene is -

A: propane
B: propyne
C: ethene
D: ethyne.

Ethanol reacts with sodium to give …………… [sodium ethanoate, sodium ethoxide, sodium propanoate]