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The P-Block Elements

Question
CBSEENCH12011076
Wired Faculty App

The correct bond order in the following species is

  • O22+ > O+2> O2-

  • O22+ < O+2< O2-

  • O22+ > O+2< O2-

  • O22+ < O+2 >O2-

Solution

A.

O22+ > O+2> O2-

straight O subscript 2 superscript minus space equals space straight sigma 1 straight s squared comma space straight sigma asterisk times 1 straight s squared comma straight sigma 2 straight s squared comma straight sigma asterisk times 2 straight s squared space straight sigma 2 straight p subscript straight z superscript 2 left parenthesis straight pi 2 straight p subscript straight x superscript 2 space equals space straight pi 2 straight p subscript straight y superscript 2 right parenthesis space left parenthesis straight pi asterisk times 2 straight p subscript straight x superscript 2 space equals space straight pi asterisk times 2 straight p subscript straight y superscript 1 right parenthesis Bond space order equals fraction numerator Number space of space electrons space in space BMO minus space Number space of space electron space ABMO over denominator 2 end fraction equals space fraction numerator 10 minus 7 over denominator 2 end fraction space equals space 3 over 2 space equals space 1.5 straight O subscript 2 superscript 2 plus end superscript space equals space straight sigma 1 straight s squared comma space straight sigma asterisk times 1 straight s squared comma straight sigma 2 straight s squared comma straight sigma asterisk times 2 straight s squared space straight sigma 2 straight p subscript straight z superscript 2 left parenthesis straight pi 2 straight p subscript straight x superscript 2 space equals space straight pi 2 straight p subscript straight y superscript 2 right parenthesis space left parenthesis straight pi asterisk times 2 straight p subscript straight x superscript 0 space equals space straight pi asterisk times 2 straight p subscript straight y superscript 0 right parenthesis straight B space straight O space equals space fraction numerator 10 minus 4 over denominator 2 end fraction space equals space 6 over 2 space equals space 3 straight O subscript 2 superscript plus space equals space space straight sigma 1 straight s squared comma space straight sigma asterisk times 1 straight s squared comma straight sigma 2 straight s squared comma straight sigma asterisk times 2 straight s squared space straight sigma 2 straight p subscript straight z superscript 2 left parenthesis straight pi 2 straight p subscript straight x superscript 2 space equals space straight pi 2 straight p subscript straight y superscript 2 right parenthesis space left parenthesis straight pi asterisk times 2 straight p subscript straight x superscript 1 space equals space straight pi asterisk times 2 straight p subscript straight y superscript 0 right parenthesis straight B. straight O space equals space fraction numerator 10 minus 5 over denominator 2 end fraction space equals space 5 over 2 space equals space 2.5 so comma space the space correct space order space is comma straight O subscript 2 superscript minus space less than space straight O subscript 2 superscript plus less than space straight O subscript 2 superscript 2 plus end superscript

Some More Questions From The p-Block Elements Chapter

Bond angle in PH4+ is higher than that in PH3. Why?

Write a balanced equation for the hydrolytic reactions PCl5 in heavy water.

What is the basicity of H3PO4?

What happens when H3PO3 is heated?

List the important source of sulphur.

Write the order of thermal stability of the hydrides of Group 16 elements.

Why is H2O a liquid and H2S a gas?

Which of the following does not react with oxygen directly?
Zn, Ti, Pt, Fe

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