The correct order of melting points of hydrides of group 16 elements is :
- (A)✓ Correct
- (B)
- (C)
- (D)
Answer: (A)
Solution
The melting points of group 16 hydrides are:
Water has an anomalously high melting point due to extensive hydrogen bonding. For the rest, melting point increases with molecular mass due to increasing van der Waals forces.
Order:
- : 273 K (highest due to strong hydrogen bonding)
- : 222 K
- : 208 K
- : 188 K (lowest)
Water has an anomalously high melting point due to extensive hydrogen bonding. For the rest, melting point increases with molecular mass due to increasing van der Waals forces.
Order:
JEE Main · 2022 · 26 Jun 2022 · Shift 1 · Single correct option