Column (I) Column (II)
(p) Noble gases (i) Elements of 15th group
(q) Halogens (ii) Elements of 16th group
(r) Chalcogens (iii) Elements of 17th group
(s) Pnicogens (iv) Elements of 18th group

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p $\overset{}{\to}$ i; q $\overset{}{\to}$ ii; r $\overset{}{\to}$ iii; s $\overset{}{\to}$ iv

p $\overset{}{\to}$ iv; q $\overset{}{\to}$ ii; r $\overset{}{\to}$ iii; s $\overset{}{\to}$ i

p $\overset{}{\to}$ iv; q $\overset{}{\to}$ iii; r $\overset{}{\to}$ ii; s $\overset{}{\to}$ i

p $\overset{}{\to}$ iv; q $\overset{}{\to}$ ii; r $\overset{}{\to}$ i; s $\overset{}{\to}$ ii

answer is A.

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Detailed Solution

15th group elements are known as pnicogens

16th group elements are known as chalcogens

17th group elements are known as halogens

18th group elements are known as inertgases

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