First slide
Group16 or Oxygen family
Question

Which of following represents the correct order of melting point of hydrides of group -16?

Moderate
Solution

Melting point:
H2O>H2Te>H2Se>H2S(373)>(222)>(208)>(188)K
In H2 H-bonding
H2Se Decreased molecular mass
H2 Very less molecular mass

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