CH_4 gas is obtained in :-(a) Hydrolysis of A | vedclass

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(B) The hydrolysis reactions of the given carbides are as follows:$Al_4C_3 + 12H_2O 	o 4Al(OH)_3 + 3CH_4$ (Methane is produced)$Be_2C + 4H_2O 	o 2Be

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(B) The hydrolysis reactions of the given carbides are as follows:$Al_4C_3 + 12H_2O 	o 4Al(OH)_3 + 3CH_4$ (Methane is produced)$Be_2C + 4H_2O 	o 2Be(OH)_2 + CH_4$ (Methane is produced)$Mg_2C_3 + 4H_2O 	o 2Mg(OH)_2 + C_3H_4$ (Propyne is produced)$CaC_2 + 2H_2O 	o Ca(OH)_2 + C_2H_2$ (Acetylene is produced)Therefore,$CH_4$ gas is obtained from the hydrolysis of $Al_4C_3$ and $Be_2C$ only.

$CH_4$ gas is obtained in :-
$(a)$ Hydrolysis of $Al_4C_3$
$(b)$ Hydrolysis of $Be_2C$
$(c)$ Hydrolysis of $Mg_2C_3$
$(d)$ Hydrolysis of $CaC_2$

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$CH_4$ gas is obtained in :-$(a)$ Hydrolysis of $Al_4C_3$$(b)$ Hydrolysis of $Be_2C$$(c)$ Hydrolysis of $Mg_2C_3$$(d)$ Hydrolysis of $CaC_2$