1.

The decasing nucleophilic order of the following compounds is: i. H_(2)O, ii. H_(2)S, iii. H_(2)Se, iv. H_(2)Te

Answer»

`(i) GT (ii) gt (iii) gt (iv)`
`(iv) gt (iii) gt (ii) gt (i)`
`(IIII) gt (i) gt (ii) gt (iv)`
`(iv) gt (ii) gt (i) gt (iii)`

Solution :Basically and nucleophilicity orders are reversed, Have different nucleophilic CENTRE and belong to the same group.
Nuclophillcity: `H_(2)OTE gt H_(2)Se gt H_(2)S gt H_(2)Te`


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