NEET 2019, Chemistry Q14: Group 16 Elements: The Oxygen Family
NEET2019Paper 2019Chemistry
Q.
Which is the correct thermal stability order for H2 E (E = O, S, Se, Te and Po)?
- A
H2 S < H2 O < H2 Se < H2 Te < H2 Po
- B
H2 O < H2 S < H2 Se < H2 Te < H2 Po
- C
H2 Po < H2 Te < H2 Se < H2 S < H2 O
- D
H2 Se < H2 Te < H2 Po < H2 O < H2 S
Solution
On going down the group thermal stability
order for H2E decreases because H–E bond
energy decreases
Order of stability would be:-
H2Po < H2Te < H2Se < H2S < H2O
Concept behind this question
Group 16 Elements: The Oxygen FamilyNotes, formulas and examples →More previous year questions on Group 16 Elements: The Oxygen Family
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