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All the following substances react with ...

All the following substances react with water. The pair that gives the same gaseous product is

A

K and `KO_(2)`

B

Na and `Na_(2)O_(2)`

C

Ca and `CaH_(2)`

D

Ba and `BaO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Ca and `CaH_(2)` give the same products.
`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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