Question

Which it the compounds H2C2O4, Ra(OH)2, CsOH, and HI, behave as bases when they are dissolved in water?

Answer 1

Answer:-
`Ra(OH)_2` and CsOH .

Explanations:-
`Ra(OH)_2` and CsOH have
`OH^-` and so when dissolved in water, they give
`OH^-` and hence they are bases.

`H_2C_2O_4` and HI gives
`H^+` when dissolved in water and so these are acids.

The equations are shown as below:

`Ra(OH)_2(aq)\rightarrow Ra^2^+(aq)+2OH^-(aq)`

`CsOH(aq)\rightarrow Cs^+(aq)+OH^-(aq)`

`H_2C_2O_4(aq)\rightarrow 2H^+(aq)+C_2O_4^2^-(aq)`

`HI(aq)\rightarrow H^+(aq)+I^-(aq)`