In which of the following reactions H2(g...

In which of the following reactions `H_2`(g) is produced?

`CaH_2 to`

`CaH_2+H_2O(l) to `

`Cu_(s) +dil. H_2SO_4 to`

Both (1) & (2)

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AAKASH INSTITUTE ENGLISH-TEST 5-EXAMPLE

In which of the following reactions H2(g) is produced?
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