Q.

Statement 1 : NO2  is readily dimerised to N2O4.

Statement 2 : NO2  has one unpaired electron and two such electrons with opposite spin in two NO2  molecules form bond between two N-atoms readily.

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a

Both Statement 1 and Statement 2 are true .

b

Statement 1 is true and Statement 2 is false.

c

 Statement 1 is false and Statement 2 is true.

d

Both Statement 1 and Statement 2 are false.

answer is A.

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Detailed Solution

Since the process does not require any rearrangement and thus energy of activation for dimerization of NO2  is low.

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Statement 1 : NO2  is readily dimerised to N2O4.Statement 2 : NO2  has one unpaired electron and two such electrons with opposite spin in two NO2  molecules form bond between two N-atoms readily.