Given below are two statements:

Statement I: is more acidic than .

Statement II: has higher bond enthalpy for dissociation than .

In the light of the above statements, choose the correct answer f

Question

Given below are two statements:

Statement I:  is more acidic than .

Statement II:  has higher bond enthalpy for dissociation than .

In the light of the above statements, choose the correct answer from the options given below:

Canvas Classes · Accepted Answer

Step 1: Evaluate Statement I — Acidity of  vs

Acidity of hydrides in Group 16:

Acidity increases down the group because:
- Bond length increases (Se–H < Te–H)
- Bond dissociation enthalpy decreases → easier to release 
-  is more acidic than

Statement I is FALSE.

Step 2: Evaluate Statement II — Bond enthalpy

Bond enthalpy for dissociation:
- Se–H bond: 276 kJ/mol
- Te–H bond: 238 kJ/mol

has higher bond dissociation enthalpy than  ✓

Statement II is TRUE.

Conclusion: Statement I is fal

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