Per NCERT §3.6.2, which two groups of p-block elements are the HALOGENS and the CHALCOGENS respectively?
AGroup 15 and 14
BGroup 17 (halogens) and Group 16 (chalcogens)
CGroup 1 and 2
DGroup 18 and 17
Answer & Solution
Correct answer: B. Group 17 (halogens) and Group 16 (chalcogens)
Per NCERT §3.6.2, halogens = Group 17, chalcogens = Group 16 — both highly negative electron gain enthalpies.
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