P-Block Elements Ques 448

Question: Bond angle is minimum for

[DPMT 1990]

Options:

A) $ H_2O $

B) $ H_2S $

C) $ H_2Se $

D) $ H_2Te $

Show Answer

Answer:

Correct Answer: D

Solution:

$ H_2O $ $ H_2S $ $ CCl_4+I_2\to $ $ H_2Te $ $ {{104.5}^{o}} $ $ 2NaI+Cl_2\to 2KCl+I_2 $ $ 91^{o} $ $ 90^{o} $ As we go down the group electronegativity decreases due to which repulsion between bonded pairs of electron also decreases. Hence, bond angle decreases.



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