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Which of the following reacts with water...

Which of the following reacts with water with high rate ?

A

`Li`

B

`K`

C

`Na`

D

`Rb`

Text Solution

Verified by Experts

The correct Answer is:
D
`2Rb+2H_(2)O rarr RbOH+H_(2)`
`overset(Li lt Na lt K lt Rb lt Cs)(rarr)`
As we go down the group reactivity with `H_(2)O` increases.
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