Given below are two statements : Statement (I): Experimentally determined oxygen-oxygen bond lengths in the O 3 are found to be same and the bond length is greater than that of a O = O (double bond)

Question

Given below are two statements : Statement (I): Experimentally determined oxygen-oxygen bond lengths in the $O_{3}$ are found to be same and the bond length is greater than that of a $O = O$ (double bond) but less than that of a single $(O - O)$ bond. Statement (II) : The strong lone pair-lone pair repulsion between oxygen atoms is solely responsible for the fact that the bond length in ozone is smaller than that of a double bond $(O = O)$ but more than that of a single bond $(O - O)$ . In the light of the above statements, choose the correct answer from the options given below :

Question diagram: Given below are two statements : Statement (I): Experimental

Options:

Answer:

C

Solution:

Bond length $\propto \frac{1}{Bond order}$ Order of $O - O$ bond length $O = O < O_{3} < O - O$ $∴$ Statement $I$ is true. Lone pair-lone pair repulsion between O-atoms is not solely responsible for the correct order of O-O bond length. Bond order also should be considered. $∴$ Statement II is false.

TestHub · Accepted Answer

Bond length ∝ Bond order 1 ​ Order of O − O bond length O = O < O 3 ​ < O − O ∴ Statement I is true. Lone pair-lone pair repulsion between O-atoms is not solely responsible for the correct order of O-O bond length. Bond order also should be considered. ∴ Statement II is false.

Chemistry - CHEMICAL BONDING Question with Solution | TestHub

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