☰
✕

The p-Block Elements
Question
Wired Faculty App

Acidity of diprotic acids in aqueous solutions increases in the order

  • H2S < H2Se< H2Te

  • H2Se <H2S <H2Te

  • H2Te <H2S < H2Se

  • H2Se < H2Te <H2S

Answer

A.

H2S < H2Se< H2Te

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
H2S <H2Se <H2Te

Sponsor Area

Some More Questions From The p-Block Elements Chapter

Write a balanced equation for the hydrolytic reactions PCl5 in heavy water.

What is the basicity of H3PO4?

What happens when H3PO3 is heated?

List the important source of sulphur.

Write the order of thermal stability of the hydrides of Group 16 elements.

Why is H2O a liquid and H2S a gas?

Which of the following does not react with oxygen directly?
Zn, Ti, Pt, Fe

Complete the following reactions
(i) C2H4 + O2 →
(ii) 4Al + 3O2 →