Chemistry Gk Questions and Answers

13. Which is used in storage batteries?
  A.  Zinc
  B.  Copper
  C.  Tin
  D.  Lead
Answer
Ans: D
Lead
14. The deficiency of which one of the following leads to dental caries?
  A.  Iron
  B.  Zinc
  C.  Fluorine
  D.  Copper
Answer
Ans: C
Fluorine
15. Which fertilizer is assimilated directly by the plant?
  A.  Humus
  B.  Muriatic of potash
  C.  Nitro lim
  D.  Super phosphate
Answer
Ans: B
Muriatic of potash
16. Silicon is used in
  A.  Semiconductors
  B.  Transistors
  C.  Solar energy devices
  D.  All of these
Answer
Ans: D
All of these
123 45678910

Page 4 of 10