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JEE Main202226 Jun 2022Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

The correct order of melting points of hydrides of group 16 elements is

Options

  1. AH 2 S < H 2 Se < H 2 Te < H 2 O
  2. BH 2 O < H 2 S < H 2 Se < H 2 Te
  3. CH 2 S < H 2 Te < H 2 Se < H 2 O
  4. DH 2 Se < H 2 S < H 2 Te < H 2 O

Correct answer

A. H 2 S < H 2 Se < H 2 Te < H 2 O

Step-by-step solution

In general molar mass ↑ , MP ↑ but in H 2 O due to H -bonding, it is maximum among the following: Property H 2 O H 2 S H 2 Se H 2 Te m . p . / K 273 188 208 222

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