1.

25 volumes of H_(2)O_(2) means

Answer»

`25%H_(2)O_(2)`
`25CM^(3)` of the SOLUTION contains 1 G of `H_(2)O_(2)`
`1cm^(3)` of solution liberates `25cm^(3)` of `O_(2)` at N.T.P.
`25cm^(3)` of the solution contains 1 MOLE of `H_(2)O_(2)`.

Answer :C


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