AP EAMCET · Chemistry · Hydrogen
Which one of the following is most acidic?
- A \(\mathrm{H}_2 \mathrm{O}\)
- B \(\mathrm{H}_2 \mathrm{~S}\)
- C \(\mathrm{H}_2 \mathrm{Te}\)
- D \(\mathrm{H}_2 \mathrm{Se}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{H}_2 \mathrm{Te}\)
Step-by-step Solution
Detailed explanation
As the size of central atom, (order of size \(\mathrm{O}>\mathrm{S}>\mathrm{Se}>\mathrm{Te}\) ) increases, the \(\mathrm{H}-A\) (where \(A=\) central atom) bond length increases. Thus, the \(\mathrm{H}-\mathrm{A}\) bond dissociation energy decreases. Consequently…
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