General Science #3 MCQ

GENERAL SCIENCE #3 MCQ

1. Which of the following is a derived unit?

(a) Joule

(b) Volt

(c) Newton

(d) All of the above

Answer: (d)

2. In which of the following experiments, the quantum nature of light has to be used, to explain the observations?

(a) Polarimetry

(b) Diffraction grating

(c) Newton’s rings

(d) Photoelectricity

Answer: (d)

3. A person standing before a furnace receives most of the heat by which of the following?

(a) Convection

(b) Conduction

(c) Conduction and convection

(d) Radiation

Answer: (d)

4. The principle of working of periscope is based on which of the following?

(a) Refraction only

(b) Reflection only

(c) Reflection and refraction

(d) Reflection and interference

Answer: (c)

5. What is the mode of propagation of heat from the sun to earth?

(a) Convection alone

(b) Conduction alone

(c) Radiation alone

(d) Convection and radiation

Answer: (c)

6. By which of the following mechanism would heat be lost from a hot object standing on a metal table on the surface of moon?

(a) Convection only

(b) Radiation only

(c) Conduction only

(d) Conduction and radiation

Answer: (d)

7. How many moles of water are present in 180 g of water?

(a) 18 moles

(b) 100 moles

(c) 10 moles

(d) 1 mole

Answer: (c)

8. What is the other name of lime?

(a) Chuna

(b) Sulphur

(c) Gypsum

(d) None of the above

Answer: (a)

9. What is the symbol of silver?

(a) Ag

(b) Sn

(c) Zn

(d) Na

Answer: (a)

10. What happens to the vapour of wax when wax is heated in a conical flask that has a long glass tube attached to it?

(a) Get deposited on the outer side of conical flask

(b) Get deposited at the top of the glass tube

(c) Return back in the wax form in the conical flask

(d) Are not at all formed

Answer: (d)

11. What is the symbol of tin?

(a) Na

(b) Au

(c) Zn

(d) Sn

Answer: (d)

12. What is the Latin name of sodium element?

(a) Ferrum

(b) Aurum

(c) Cuprum

(d) Natrium

Answer: (d)

13. What is the symbol of lead?

(a) Si

(b) Mg

(c) Pb

(d) Mn

Answer: (c)

14. Which of the following are the food factories of plant?

(a) Leaves

(b) Fruits

(c) Flowers

(d) Seeds

Answer: (a)

15. Which of the following is the smallest blood vessel in the body?

(a) Capillary

(b) Venacava

(c) Artery

(d) Vein

Answer: (a)

16. What does ‘Homo sapiens’ stand for?

(a) Tool maker

(b) Human group

(c) Wise men

(d) Human being

Answer: (c)

17. Who among the following invented the drug called penicillin?

(a) Alexander Fleming

(b) Alfred Nobel

(c) Dr. Christian Bernard

(d) Louis Pasteur

Answer: (a)

18. What is called the branch of science dealing with study of fossils?

(a) Palaeobotany

(b) Palaeozoology

(c) Palaeontology

(d) None of the above

Answer: (c)

19. Hair, finger, nails and hoofs are all made up of which of the following?

(a) Iron

(b) Fat

(c) Vitamins

(d) Proteins

Answer: (d)

20. Which of the following is called suicidal bag?

(a) Mesosome

(b) Lysosome

(c) Chromosome

(d) Centrosome

Answer: (b)