Home Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Physical and Chemical Properties of Group 15th Elements The basic strength of the hydrides of group …
Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Physical and Chemical Properties of Group 15th Elements Single Correct MCQ
Published on: August 13, 2026

The basic strength of the hydrides of group 15 elements :

A
decreases on moving down the group
B
increases on moving down the group
C
first decreases upto AsH 3 and then increases
D
first increases upto AsH 3 and then decreases

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The correct answer is:
A

The basic strength of the hydrides of group 15 elements down the group decreases with decrease in the electronegativity of the central atom according to Drago's rule.

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