Question

Acetylene may be prepared by electrolysis of ;
A.Potassium oxalate
B.Potassium acetate
C.Potassium maleate
D.Potassium succinate

Answer 1

Hint: Generally hydrocarbons are divided into three main parts , alkane having $C - C$ single bond , alkene having $C = C$ double bond , alkyne having $C \equiv H$ triple bond .
Acetylene is the first member of alkyne .

Complete step by step answer:
Hydrocarbons are the compound having carbon and hydrogen as a main constituent . They are further divided into three parts , alkane – alkane belongs to hydrocarbons having carbon and hydrogen single bonds and they are $s{p^3}$ hybridized . In alkene – they are a part of a hydrocarbon having carbon hydrogen double bond and they are $s{p^2}$ hybridized . In case of alkyne , having carbon hydrogen triple bond and they are $sp$ hybridized .
Acetylene belongs to the alkyne family , having the chemical formula ${C_2}{H_2}$ . It is the simplest alkyne , acetylene cannot exist in a liquid state .
Electrolysis is the process of decomposing ionic compounds into their element by passing a direct current through the compound in the fluid form .
Acetylene may be prepared by electrolysis of potassium maleate by using kolbe's process ,
And the reaction may be given as , on electrolysis of Potassium maleate , acetylene and carbon dioxide it comes out at anode and potassium hydroxide comes out at cathode .
$2HC \equiv COOK + 2{H_2}O \to H - C \equiv C - H + 2C{O_2} + 2KOH$

Hence , the correct answer is C .

Note:
Acetylene is used by industrial gases industries for oxyacetylene gas welding and cutting due to high temperature of flame . It is also used in lamps for portable applications .