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General Science Gk Questions

General Knowledge
13. The element common to all acids is
 
  • A. Carbon
  • B. Oxygen
  • C. Sulphur
  • D. Hydrogen
Answer: D.
Hydrogen
 
14. Hartley oscillators is commonly used in
 
  • A. Radio current
  • B. Dc generators
  • C. Transformer
  • D. Camera
Answer: A.
Radio current
 
 
15. The inner back surface of the eye is called
 
  • A. Choroid
  • B. Retina
  • C. Pupil
  • D. Cornea
Answer: B.
Retina
 
16. Galvanised iron sheets have a coating of
 
  • A. Tin
  • B. Zinc
  • C. Lead
  • D. Chromium
Answer: B.
Zinc