Question

Arrange the hydrides of group 15 in decreasing order of basic strength.

Solution

Down the group electron density on central atom decreases and consequently its tendency to donate a pair of electron decreases and hence its basic strength decreases as we move from NH₃ to BiH_3.The correct order is

\underset{Strongest base}{{NH}_{3}} > {PH}_{3} > As H_{3} > {SbH}_{3} > \underset{Weakest base}{Bi H_{3}}

Some More Questions From The p-Block Elements Chapter

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The P-Block Elements

Arrange the hydrides of group 15 in decreasing order of basic strength.

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→

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The P-Block Elements

Arrange the hydrides of group 15 in decreasing order of basic strength.

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 →

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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

What is the basicity of H₃PO₄?

What happens when H₃PO₃ is heated?

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→