Question

order of volatility ?how to arrange the H2O, H2S, H2Te, H2Se

Answer 1

H2O < H2S < H2Se < H2Te

Hope it helps u.

Answer 2

Order of Volatility

A compound's intermolecular contacts determine volatility; as molecular weight rises, so do the Vander wals forces. Because of the high electronegativity of fluorine and linear bonding, the expected order should be HF. However, we must remember that HF possesses hydrogen bonding, and the extent of hydrogen bonding is very large.

An arrangement according to the Order of Volatility

$H_{2} O < H_{2} S < H_{2} Se < H_{2}Te$

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