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Which of the following pairs of substanc...

Which of the following pairs of substances would give same gaseous product on reaction with water

A

Na and `Na_2O_2`

B

Ca and `CaH_2`

C

Ca and CaO

D

Ba and `BaO_2`

Text Solution

Verified by Experts

The correct Answer is:
B
`Ca+2H_2O rarr Ca(OH)_2 +H_2`.
`CaH_2 +2H_2O rarr Ca(OH)_2 +2H_2`
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