1.

All of the following substances react with wter. The pair that yeilds the same gaseous product is

Answer»

K and `KO_(2)`
Ca and `CaH_(2)`
`Na and Na_(2)
Ba and `BaO_(2)`

SOLUTION :(B) Ca and `CaH_(2)` yield the same product
`Ca+2H_(2)O to Ca(OH)_(2)+H_(2)`
`CaH_(2)+2H_(2)O to Ca(OH)_(2)+2H_(2)`


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