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Alkali metals react with water vigorousl...

Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously

A

Li

B

Na

C

K

D

Cs

Text Solution

Verified by Experts

The correct Answer is:
A
Due to high melting point even thought Li has high heat of hydration it is not sufficient to melt which exposes greatest surface to water for a reaction
`therefore` Li has least reactivity
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