****Chemistry Quiz ****

1. Gun Powder is a mixture of ______ ?

Answer: Sulphur, Carbon and Pottasium Nitrate

2. Which is the only liquid non-metal at room tempreature?
Answer: Bromine

3. The first metal used by man was _____ ?
Answer: Copper

4. Which is the Most abundant Noble gas in the air ?
Answer: Argon

5. Which metal is present in Insulin ?
Answer: Zinc

6. Which metal is present in human tears ?
Answer: Zinc

7. Which metal is present in chlorophyll ?
Answer: Magnesium

8. Which metal is present in Sindur (the sacred material of Hindus) ?
Answer: Lead

9. Which metal is present in hemoglobin ?
Answer: Iron

10. Which is the Alkali metal used in photovoltaic cell ?
Answer: Cesium

11. Who is regarded as father of modern chemistry ?
Answer: Lavoisier

12. Which acid is present in lemon ?
Answer: citric acid

13. Rare gases are :
Answer: mono atomic

14. The term PVC used in the plastic industry stands for:
Answer: polyvinyl chloride

15. Bleaching action of chlorine is by:
Answer: decomposition

16. Nail polish remover contains ?
Answer: acetone

17. The isotope atoms differ in ?
Answer: number of neutrons

18. Who proposed first atomic theory ?
Answer: John Dalton

19. pH of blood is ?
Answer: 7.4

20. Water drops are spherical because of ?
Answer: surface tension