Question

Which of the following options is
the correct according to the
decreasing order of reactivity
among group 1 elements?
: A.
Rb > K > Na > Li > Cs
B.
Cs > Na>K> Li > Rb
Cs > Rb > K> Na > Li
D.
Na > Li > K > Cs > Rb​

Answer 1

Hey,

The correct decreasing order of reactivity among group 1 elements is -:

[Cs > Rb > K > Na > Li]

This order is due to increase in metallic character while going from up to down in 1st group.

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Answer 2

Answer:

Cs>Rb>k>Na>Li D is the decreaseing order of reactivity among group 1 element