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Out of the following metals which will g...

Out of the following metals which will give `H_(2)` on reaction with `NaOH:`
`I: Zn,` ,`II:Mg`,
`III: Al,`,`IV:Be`

A

`I,II,III,IV`

B

`I,III,IV`

C

`II,IV`

D

`I,III`

Text Solution

Verified by Experts

The correct Answer is:
B
In `II A `group only `Be` gives `H_(2)` gas with alkaline solution other alkaline eath metals don’t react.
`Be+2NaOH+2H_(2)O rarr Na_(2)BaO_(2).2H_(2)O+H_(2)`
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