JEE MAIN - Chemistry (2023 - 30th January Evening Shift - No. 11)

Bond dissociation energy of "E-H" bond of the "$\mathrm{H}_{2} \mathrm{E}$ " hydrides of group 16 elements (given below), follows order.

A. $\mathrm{O}$

B. $\mathrm{S}$

C. Se

D. $\mathrm{Te}$

Choose the correct from the options given below:
$\mathrm{A}>\mathrm{B}>\mathrm{C}>\mathrm{D}$
$\mathrm{D}>\mathrm{C}>\mathrm{B}>\mathrm{A}$
$\mathrm{B}>\mathrm{A}>\mathrm{C}>\mathrm{D}$
$\mathrm{A}>\mathrm{B}>\mathrm{D}>\mathrm{C}$

Explanation

The correct order of bond strength is

$$\mathrm{H_2O > H_2S > H_2Se > H_2Te}$$

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