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Question

Assertion (A) : In the periodic table of chemical increase from top to bottom in a group
Reason (R) : In a group, the atomic radii generally increase from top to bottom.

A
Both A and R are individually true and R is the correct explanation of A
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B
Both A and R are individually true but R is not the correct explanation of A
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C
A is true but R is false
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D
A is false but is true
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