1.

Hydrides of group 16 are weakly acidic in nature. The correct order of acidity is

Answer»

`H_2O gt H_(2)S gt H_(2)Se gt H_(2)TE`
`H_(2)Te gt H_(2)O gt H_(2)S gt H_(2)Se`
`H_2Te gt H_(2)Se gt H_(2)S gt H_(2)O`
`H_(2)Te gt H_(2)Se gt H_(2)O gt H_(2)S`

SOLUTION :Owing to increase in the size of central atom, ACIDITY of hydrides increases on moving down the group, The distance between the central atom and hydrogen increases as we move from 'O' to Te', which favors the release of hydrogen as proton.


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