Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : ${H}_{2}Te$ is more acidic than ${H}_{2}S$ .
Reason R: Bond dissociation enthalpy of ${H}_{2}Te$ is lower than ${H}_{2}S$ .
In the light of the above statements. Choose the most appropriate from the options given below.

Question

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : ${H}_{2}Te$ is more acidic than ${H}_{2}S$ .

Reason R: Bond dissociation enthalpy of ${H}_{2}Te$ is lower than ${H}_{2}S$ .
In the light of the above statements. Choose the most appropriate from the options given below.

Quantrex Academy · Accepted Answer

Correct answer: B. Both A and R are true and R is the correct explanation of A.

Bond enthalpy, also referred to as bond energy or bond dissociation energy, is the energy required to break a particular covalent bond in one mole of molecule in a gaseous state.
The bond dissociation enthalpy of ${H}_{2}Te$ is lower than that of ${H}_{2}S$ .
As a result, less energy is required to break the ${H}_{2}Te$ bond, releasing ${\left[H\right]}^{+} is easier, and the acidity of$ {H}_{2}Te $is greater.</p><p>$ {H}_{2}S, on the other hand, has a high bond dissociation energy and so has lower acidity.
Hence, Both A and R are true and R is the correct explanation of A.

Given below are two statements: One is labelled as Assertion A and...

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