When metal carbides react with `H_(2)O`, the correct equations are

Options

A. `Al_(4)C_(3)+H_(2)O rarr CH-=CH`
B. `CaC_(2)+H_(2)O rarr CH-=CH`
C. `Mg_(2)C_(3)+H_(2)O rarr CH_(3)C-= CH`
D. `Be_(2)C+H_(2)O rarr CH_(4)`

Answer

B, C, D

Explanation

`Al_(4)C_(3)+12H_(2)O rarr 4Al(OH)_(3)+3CH_(4)`
`CaC_(2)+2H_(2)O rarr Ca(OH)_(2)+C_(2)H_(2)`
`Mg_(2)C_(3)+4H_(2)O rarr 2Mg(OH)_(2)+CH_(3)-C-= CH`
`Be_(2)C+4H_(2)O rarr 2Be(OH)_(2)+CH_(4)`