General Science Questions (MCQs) for Competitive Examinations

General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

1. As per the Mohs scale of mineral hardness, which of the following are soft metals?

  1. Gold
  2. Copper
  3. Diamond
  4. Thorium

Select the correct option from codes given below:

[A] 1 & 4 Only
[B] 1, 2 & 4 Only
[C] 2 & 4 Only
[D] 1, 2, 3 & 4

Show Answer

2. Identify the noble gas utilized in radiotherapy?
[A] Neon
[B] Argon
[C] Radon
[D] Xenon

Show Answer

3. Saprophytes are the organisms which depend for food on
____:
[A] Inorganic chemical compounds
[B] Living plants
[C] Living animals
[D] Dead and decaying material

Show Answer

4. The biological process in which both aerobes and anaerobes degrade organic matter is ____:
[A] Digesting
[B] Composting
[C] Manuring
[D] Nutrifying

Show Answer

5. Wilting of plants occurs due to excessive ____:
[A] Respiration
[B] Glutation
[C] Absorption
[D] Transpiration

Show Answer

6. Rate of cooling depends on the
____:
[A] Nature of the radiating surface
[B] Area of the radiating surface
[C] Temperature difference between the body and the surroundings
[D] All of the above

Show Answer

7. Somatotropin is another name for _____:
[A] Growth hormone
[B] Digestive juice
[C] Tear gas
[D] Laughing gas

Show Answer

8. In which one of the following is swim bladder absent?
[A] Cartilaginous fish
[B] Silverfish
[C] Cuttlefish
[D] Bony fish

Show Answer

9. Dumb-bell shaped guard cells are present in
____:
[A] Mango
[B] Wheat
[C] Gram
[D] Groundnut

Show Answer

10. Biodegradable wastes can usually be converted into useful substances with the help of ____:
[A] Bacteria
[B] Viruses
[C] Nuclear proteins
[D] Radioactive substances

Show Answer