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Solution


Q.

Given below are two statements:                                   [2025]

Statement I: On nitration of m-xylene with HNO3, H2SO4 followed by oxidation, 4-nitrobenzene-1,3-dicarboxylic acid is obtained as the major product.

Statement II: –CH3 group is o/p-directing while –NO2 group is m-directing group.

In the light of the above statements, choose the correct answer from the options given below:
1 Both Statement I and Statement II are false  
2 Statement I is false but Statement II is true  
3 Both Statement I and Statement II are true  
4 Statement I is true but Statement II is false  

Ans.

(3)

Statement I:

Statement II: Because of hyperconjugation effect of alkyl groups, electron density is increased at ortho and para position of benzene. Hence incoming electrophiles are directed to ortho and para position. Because of –M effect of nitro group, electron density is decreased at ortho and para position of benzene. Hence incoming electrophiles are directed to meta position.