Q.

The alkali metal that can react differently in many reactions is

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a

Na

b

Rb

c

K

d

Li

answer is D.

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Detailed Solution

Li is different from the rest of the elements from the same groupReasons:1) Due to its small size2) High polarising power of ion3) High electronegativity4) Absence of vacant d-orbitals
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The alkali metal that can react differently in many reactions is