Question
Chemistry Question on Chemical bonding and molecular structure
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : H-S-H bond angle in H2S is closer to 90∘ but H-0-H bond angle in H2O is 104.5∘.
Reason (R) : lp−lp repulsion is stronger in H2S than in H2O.
In the light of the above statements, choose the correct answer from the options given below
Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
Assertion is true but Reason is false
Both Assertion and Reason are false.
Assertion is true but Reason is false
Solution
Lone pair-bond pair repulsion, is strong in H2S as bond pair-bond pair repulsion becomes weak with increase in size of central atom.