Daily Top-20 MCQs
(Everyday Science)
1. Who invented logarithm tables?
(a) John Napier
(b) H. Moseley
(c) N. Bohr
(d) Chadwick
Answer: a
2. What was the religion of Albert Einstein?
(a) Jewish
(b) Catholic
(c) Protestant
(d) Anglican
Answer: a
3. What colour of visible light is the shortest in wavelength?
(a) Violet
(b) Blue
(c) Red
(d) Green
Answer: a
4. What colour of visible light is the longest in wavelength?
(a) Violet
(b) Blue
(c) Red
(d) Green
Answer: c
5. Which acid is used in a car battery?
(a) Hydrochloric acid
(b) Carbonic acid
(c) Sulphuric acid
(d) Nitric acid
Answer: c
6. What organelle is known as the ‘brain’ of the cell?
(a) Nucleus
(b) Mitochondria
(c) Chloroplast
(d) Cell membrane
Answer: a
7. What gas plants contribute to the earth’s atmosphere?
(a) Hydrogen
(b) Nitrogen
(c) Oxygen
(d) Carbon dioxide
Answer: c
8. What products are, as a general rule, the result of an acid and a base reacting together?
(a) Water and a salt
(b) Water and ethanol
(c) Methane gas and nitrogen
(d) Hydrogen gas and carbon dioxide
Answer: a
9. What stored energy is commonly called?
(a) Potential energy
(b) Kinetic energy
(c) Chemical energy
(d) Radiant energy
Answer: a
10. Human breath is visible in winter but not in summer because
(a) Water vapour in breath condenses in cold air, making it visible
(b) The difference in outside pressure gives visibility to breath
(c) Breath contains certain impurities
(d) None of these
Answer: a
11. What is NOT a greenhouse gas?
(a) Carbon dioxide
(b) Nitrogen
(c) Methane
(d) Ozone
Answer: b
12. What system our brain is in?
(a) Respiratory system
(b) Bone system
(c) Nervous system
(d) Digestive system
Answer: c
13. Which of the followings is used common in storage batteries?
(a) Copper
(b) Mercury
(c) Lead
(d) Silicon
Answer: c
14. In a standard drug test, which seeds can cause false positive results for opium use?
(a) Pumpkin
(b) sunflower
(c) Poppy
(d) sesame
Answer: c
15. Epiphytic and parasitic plants grow on which of the following?
(a) Humans
(b) rocks
(c) Dogs
(d) plants
Answer: d
16. What is the atomic number for Hydrogen?
(a) 36
(b) 12
(c) 1
(d) 24
Answer: c
17. The branch of study dealing with old age and aging is called-
(a) Oncology
(b) Gerontology
(c) Teratology
(d) Ornithology
Answer: b
18. If a green leaf is seen in a red light its color will be
(a) Black
(b) Red
(c) Blue
(d) Yellow
Answer: a
19. Half-time is a time of _____ taken by that substance to decompose radioactivity to half of its weight
(a) Radioactive substance
(b) Plants and Animals
(c) Solid substance
(d) Gases substance
Answer: a
20. Light energy is stored in the form of ______due to the activity of Chloroplast
(a) Mechanical energy
(b) Electrical energy
(c) Chemical energy
(d) None of the above
Answer: c
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