Gk Questions and Answers

1. Discovery of the nucleus of an atom was due to the experiment carried out by
  A.  Rutherford
  B.  Moseley
  C.  Bohr
  D.  Thomson
Answer
Ans: A
Rutherford
2. The oxide of which of the following elements is used as a coolant?
  A. Phosphorus
  B. Silicon
  C. Carbon
  D. Nitrogen
Answer
Ans: C
Carbon
3. Concentrated solution of sodium chloride is called
  A.  Saline water
  B.  Sterilized water
  C.  Brine
  D.  Mineral water
Answer
Ans: C
Brine
4. The pH of soft drink is
  A.  3.0
  B.  3.8
  C.  6.5
  D.  8.5
Answer
Ans: A
3.0
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