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Q.

How many total number of lone pairs are present in N2O4 molecule?

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a

9

b

6

c

8

d

10

answer is B.

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Detailed Solution

The Lewis structure of N2​O4​ is as shown.

Question Image


 

 

 

  • Here one N atom is attached to another N−atom by single bond. 
  • Both N atoms form 1 double bond with O atom and again both N atoms are attached to O− atom by single bond.
  • Here, the number of lone pairs =2×(2+3)=10.
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