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in Chemistry by (45.1k points)

The correct increasing order of trans-effect of the following species is

(a) NH3 > CN- > Br- > C6H5-

(b) CN- > C6H5- >Br- > NH3

(c) Br- > CN- > NH3 > C6H5-

(d) CN- > Br- > C6H5- > NH3

1 Answer

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Best answer

Correct option (b) CN- > C6H5- >Br- > NH3

Explanation :

The intensity of the trans-effect as measured by the increase in rate of substitution of the trans ligand follows the sequence :

CN- > C6H5- >Br- > NH3

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