CTET Science Quiz

CTET Science Quiz

1. Soap is prepared by boiling Caustic soda with which substance?

Answer: Fats

2. The elements in the periodic table is arranged according to which order?

Answer: Atomic Number

3. Another name of ‘Rock Cotton’ is?

Answer: Asbestos

4. Heavy water is also called as?

Answer: Deuterium oxide (D2O)

5. ‘Brown Coal’ is referred to which substance?
Answer: Lignite

6. Metals that are extracted from sea water?
Answer: Sodium and Magnesium

7. ‘Black Diamond’ is referred to which substance?
Answer: Coal

8. Electron was discovered by whom?
Answer: J.J Thomson

9. ‘Freon’ used as a refrigerant is chemically known as?
Answer: Fluorinated Hydrocarbon

10. Paper is chemically known as?
Answer: Cellulose

11. Which metalis also called as  ‘Metal of Future’?
Answer: Titanium

12. Ethai ethai is a disease caused by which metal?
Answer: Cadmium

13. Minamata is a disease caused by?
Answer: Mercury

14. Plumbism is a disease caused by which substance?

Answer: Lead

15. Mercury can best be purified by?
Answer: Vacuum Distillation

16. Which gas is evolved when a metal react with acid?
Answer: Hydrogen

17. Calgon is:
Answer: Sodium Hexametaphosphate

18. Hardest substance on Earth is?
Answer: Diamond

19. The Chemical name of Teflon?
Answer: Polytetra Fluoroethylene

20. Impurity present in Ore is:
Answer: Gangue

21. Carbon content in the steel?
Answer: 0.02 to 2.1%