Questions
Which of following represents the correct order of melting point of hydrides of group -16?
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a
H2O >, H2S > H2Se > H2Te
b
H2O > H2S > H2Te > H2Se
c
H2O > H2Te > H2Se > H2S
d
H2O > H2Se > H2Te > H2S
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Correct option is C
Melting point:H2O>H2Te>H2Se>H2S(373)>(222)>(208)>(188)KIn H2O ⇒ H-bondingH2Se⇒ Decreased molecular massH2S ⇒ Very less molecular mass
Similar Questions
The atomic number of the element next to 16S in the same group is
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