JEE Main Chemistry question

A trend common to both group I and VII elements in the Periodic Table as atomic number increases is

(A)Atomic radius increasesCorrect
(B)Oxidising power increases
(C)Reactivity with water increases
(D)Maximum valency increases

Answer: (A)

Solution

In both group 1 (alkali metals) and group 17 (halogens), moving down the group adds successive electron shells, so atomic radius increases steadily in both groups as atomic number increases. Oxidising power and reactivity with water increase down group 1 but

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Question ID VK-133275