The p-Block Elements Class 12 MCQs Questions with Answers

1. Which one of the following contains the maximum number of lone pair of electrons on the central atom?

2. Which of the following statement is incorrect?

3. When chlorine reacts with cold and dilute solution of sodium hydroxide, it forms:

4. Which of the following compounds contains S=O and S=S bonds?

5. The three important oxidation states of phosphorus are:

6. Helium is preferred to be used in balloons instead of hydrogen because it is:

7. Catenation property is maximum in:

8. In the manufacture of sulphuric acid by contact process Tyndall box is used to:

9. Among the tri halides of Nitrogen, which one is the least basic?

10. Pentavalence in phosphorus is more stable when compared to that of nitrogen even though they belong to same group. This is due to:

11. The oxoacid of halogen having maximum acidic character is:

12. Nitrogen forms N2, but phosphorus is converted into P4 from P, the reason is:

13. Which of the following has maximum ionisation potential?

14. H2S is more acidic than H2O because:

15. Element found from sea water is:

16. Which of the following statement is incorrect for group 15 elements ?

17. Ionic radii (in Å) of As3+, Sb3+ and Bi3+ follow the order:

18. Fluorine differs from rest of the halogens in some of its properties. This is due to:

19. The shape of XeF4 is:

20. Among the following, which one is a wrong statement: