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Question: Which of the following is/are soft bases ? H<sub>2</sub>O, H<sup>–</sup> , CO,CO<sub>2</sub>, C<sub...

Which of the following is/are soft bases ?

H2O, H– , CO,CO2, C2H4, CN–

A

C2H4

B

H– ,CN–, CO

C

H–, CN–, CO, C2H4

D

H–, CO, CO2, C2H4

Answer

H–, CN–, CO, C2H4

Explanation

Solution

Soft bases have the donor atom of highly polarisable and they preferably combine with the metal ions of lower oxidization states.