Question

Bond angle is minimum for

• A. $H_2O$
• B. $H_2S$
• C. $H_2Se$
• D. $H_2Te$

Answer 1

Answer: (D)

$H_2Te$

Answer 2

Bond angle is minimum for H 2​Te .

The above-mentioned elements are the hydrides of the 6th group elements in which the central atom undergoes SP3 hybridization and should possess a bond angle of 109 degrees. However, the bond angle distorts as a result of the repulsion between the lone pair and the lone pair. But these repulsions are minimum in H2​Te as the tellurium has a large size which makes the repulsions minimum.

Therefore, the correct answer is option D, the Bond angle of hydrides decreases down the group.