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Solution


Q.

Given below are two statements:

Statement I: N(CH3)3 and P(CH3)3 can act as ligands to form transition metal complexes.

Statement II: As N and P are from the same group, the nature of bonding of N(CH3)3 and P(CH3)3 is always same with transition metals.

In the light of the above statements, choose the most appropriate answer from the options given below:                      [2024]
1 Statement I is correct but Statement II is incorrect  
2 Both Statement I and Statement II are correct  
3 Statement I is incorrect but Statement II is correct  
4 Both Statement I and Statement II are incorrect  

Ans.

(1)

Since both N and P have lone pair of electrons in N(CH3)3 and P(CH3)3, these act as ligands and form complexes. P has vacant d orbital hence P(CH3)3 act as π acceptor ligand, but N(CH3)3 cannot do so as N does not have a vacant d orbital.