CBSE Class 12 Chemistry The d-and f-Block Elements Quiz 1

1. Boron shows diagonal relation with

A Al B C C Si D Sn

2. Catenation property is maximum in

A phosphorus B carbon C sulphur D zinc

3. Which one of the following is an electrophilic reagent?

A BF B KH C H D None of these

4. Element found from sea water is

A magnesium B Sodium C Iodine D None of these

5. The shape of XeF is

A tetrahedral B square planar C pyramidal D linear

6. Which one of the following is the strongest lewis acid?

A BF B BCl C BBr D Bl

7. Which one of the following does not form hydrogen bonding?

A NH B HO C HCl D HF

8. Main source of helium is

A Air B Radium C Monazite D Water

9. Which one of the following dement is liquid at normal temperature?

A zinc B mercury C bromine D water

10. Which one of the following is least basic?

A NCl B NBr C NI D NF