75. Which of the following carbides give methane on  hydrolysis?
(1) SiC
(2) Al₄C₃
​(3) CaC₂
(4) Mg₂C3
 

Dear Student,

The carbide which contain C^4- anion will give methane on hydrolysis. Therefore, the correct answer is (2)


${\mathrm{Al}}_4{\mathrm{C}}_3 + 12{\mathrm{H}}_2\mathrm{O} \to 4\mathrm{Al}(\mathrm{OH}{)}_3 + 3{\mathrm{CH}}_4$