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AIIMS 201926 May
Exam
AIIMS
Year
2019
Date
26 May
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

AIIMS 2019 · 26 May · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

In dimer of phosphorus pentoxide, in what order number of P-P, P=O...

In dimer of phosphorus pentoxide, in what order number of P−P,P=O\mathrm{P}-\mathrm{P}, \mathrm{P}=\mathrm{O} and P−O−P\mathrm{P}-\mathrm{O}-\mathrm{P} bonds are there?In dimer of phosphorus pentoxide, in what order number of P-P, P=O and P-O-P bonds are there?

Options

  1. AP−O−P>\mathrm{P}-\mathrm{O}-\mathrm{P}>\mathrm{P}=\mathrm{O}>P−P>\mathrm{P}-\mathrm{P}
  2. BP=O>P−O−P>P−P\mathrm{P}=\mathrm{O}>\mathrm{P}-\mathrm{O}-\mathrm{P}>\mathrm{P}-\mathrm{P}
  3. CP−O−P>P−P>P=O\mathrm{P}-\mathrm{O}-\mathrm{P}>\mathrm{P}-\mathrm{P}>\mathrm{P}=\mathrm{O}
  4. DP=O>P−P>P−O−P\mathrm{P}=\mathrm{O}>\mathrm{P}-\mathrm{P}>\mathrm{P}-\mathrm{O}-\mathrm{P}

Correct answer

A. P−O−P>\mathrm{P}-\mathrm{O}-\mathrm{P}>\mathrm{P}=\mathrm{O}>P−P>\mathrm{P}-\mathrm{P}

Step-by-step solution

In dimer of phosphorus pentoxide, in what order number of P-P, P=O and P-O-P bonds are there?
Total P−O−P\mathrm{P}-\mathrm{O}-\mathrm{P} bond s=6\mathrm{s}=6 Total P=O\mathrm{P}=\mathrm{O} bond =4=4 Total P−P\mathrm{P}-\mathrm{P} bonds =0=0
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