Complete the following reactions stating the main products formed in each.
(i) `CH_(3)-CH=CH_(2)+H_(2)overset("Ni-catalyst")to`
(ii) `C_(2)H_(5)OH+Nato`
(iii) `CH_(3)COOH+Na_(2)CO_(3)to`

Explanation

(i) `underset("Propane")(CH_(3)-CH)=CH_(2)+H_(2)overset("Ni-catalyst")tounderset("Propane")(CH_(3)-CH_(2)-CH_(3))`
(ii) `underset("Propene")(2C_(2)H_(5)OH+2Natounderset("Sod. Ethoxide")(2C_(2)H_(5)ON a+H_(2))`
(iii) `underset("Ethanoic acid")(2CH_(3)COOH)+Na_(2)CO_(3)tounderset("Sod. ethanoate")(2CH_(3)COONa+CO_(2)+H_(2)O)`