GK Quiz on Science: Chemistry Set XV

GK Quiz on Science: Chemistry Set XV, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. Galena is the ore of the metal:

A. Silver

B. Lead

C. Mercury

D. Aluminium

2. Monozite is the ore of:

A. Zirconium

B. Thorium

C. Titanium

D. Iron

3. The chemical formula of washing soda is :

A. NaOH

B. Ca (OH)₂

C. NaOHC0₃

D. Na₂C0₃.10H₂O

4. In the ocean-water which of the following salt has its maximum contribution in the salinity:

A. Calcium sulphate

B. Magnesium chloride

C. Magnesium iodide

D. Sodium chloride

5. The chemical utilized and employed as fixer in the photography is:

A. Sodium sulphate

B. Sodium thiosulphate

C. Ammonium per-sulphate

D. Borax

6. The extremely soft mineral, talk (soap stone) is mainly:

A. Manganese silicate

B. Sodium silicate

C. Sodium phosphate

D. Magnesium silicate

7. In the earth crust although the amount of aluminium is more than iron, however aluminium is costly than iron because:

A. Aluminium is more useful than iron

B. Aluminium forms more alloys than iron

C. Aluminium made equipments are more acceptable then iron equipments

D. The extraction processes of aluminium is more costly than extraction processes of iron

8. For the installation of aluminium plants in India, the minimum required parameter other than bauxite is:

A. Coke

B. Electricity

C. Labour

D. Market

9. Which of the following statement is true regarding the aluminium?

A. Aluminium hydroxide is amphoteric in nature

B. Aluminium exists in the Free State in nature

C. Nitric acid does not react with the aluminium

D. Hot and concentrated H2SO4 directly react with oxygen in which SO2 gas is released

10. The chemical formula of the plaster of Paris is:

A. CaS0₄.5H₂O

B. 2CaS0₄. H₂O

C. (CaS04)₂. 2H₂O    

D. CaSO₄. MgO