General Science Model Questions

General Science Model Questions and Answers for preparing all PSC Examinations.

1. The chief nitrogenous product in the human urine is:

Ans. Urea

2. International voluntary blood donation day:

Ans. November 6

3. Ageing in human beings caused due by disappearance of which gland?

Ans. Thymus

4. Wisdom teach normally appears in the age group:

Ans. 17-30 years

5. Chemically an enzyme is a:

Ans. Protein

6. The red color of ripe tomatoes is due to the presence of:

Ans. Carotenoids

7. Who discovered leprosy bacillus:

Ans. Hansen

8. Penicillin is obtained from:

Ans. Fungus

9. Operator flood refers to:

Ans. Milk production

10. Pure water is obtained from sea water by the process of:

Ans. Distillation

11. The purest form of iron is:

Ans. Wrought iron

12. The type of water which does not lather easily is called:

Ans. Hard water

13. An element that does not occur in nature but can be produced artificially is:

Ans. Plutonium

14. Actinides are the elements with atomic number from:

Ans. 89 to103

15. The two elements that are frequently used for making transistors are:

Ans. Silicon & Germanium

16. From which mineral is radium obtained:

Ans. Pitchblende

17. Bleaching powder is made from:

Ans. Lime and chlorine

18. Nuclear fission is caused by the impact of:

Ans. Neutron

19. Titanium is purified by:

Ans. Van Arkel method

20. Unit of loudness:

Ans. Decibel

21. The kinetic energy of a body depends on its:

Ans. Velocity

22. The period of revolution of a geostationary satellite is:

Ans. 24 hours

23. The color of a star depends on its:

Ans. Temperature

24. Who put forward Drift Theory?

Ans. Alfred Wegner

25. A rainbow is formed by the …………. of the light by water droplets.

Ans. Dispersion and total internal reflection.