The correct among the following statements is/ae

Options

A. Calcium carbide on hydrolysis produces acetylene
B. Calcium carbide when heated with `N_(2)` at `1100^(@)C` forms calcium cyanamide
C. Cyanamide ion is isoelectronic with `CO_(2)`
D. Beryllium carbide on hydrolysis forms `CH_(4)`

Answer

A, B, C, D

Explanation

`CaCO_(2)+2H_(2)OtoCa(OH)_(3)+C_(2)H_(2)`
`CaC_(2)+N_(2)to Ca(NCN)+C`
`Be_(2)C+4H_(2)Oto2Be(OH)_(2)+CH_(4)`
Cyanamide ion `[N=C=N]^(2-)` is isoelectronic with `CO_(2)`
`NO(g)+NO_(2)(g)hArrN_(2)O_(3)(g)`