NEET Solved Paper 2014 Question 22
Question: Acidity of diprotic acids in aqueous solutions increases in the order [AIPMT 2014]
Options:
A) $ H _2S<H _2Se<H _2Te $
B) $ H _2Se<H _2S<H _2Te $
C) $ H _2Te<H _2S<H _2Se $
D) $ H _2Se<H _2Te<H _2S $
Show Answer
Answer:
Correct Answer: A
Solution:
- Acidic strength of hydrides increases as the size of central atom increases which weakens the M?H bond. Since, the size increases from S to Te thus acidic strength follows the order $ H _2S<H _2Se<H _2Te $
