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Chemistry Questions and Answers

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1. National chemical laboratory is at
 
  • A. Kolkata
  • B. Kalpakkam
  • C. Pune
  • D. Delhi
 
2. First atomic model was proposed by
 
  • A. De Broglie
  • B. John Dalton
  • C. E.Rutherford
  • D. D.I. Mendeleef
 
 
3. Magnetron is used for the production of
 
  • A. Cathode rays
  • B. Microwaves
  • C. Positive rays
  • D. X–rays
 
4. Gobar gas mainly contains
 
  • A. carbon monoxide
  • B. hydrogen sulphide
  • C. methane
  • D. carbon dioxide
 
5. The scientist who gave the atomic concept of matter is
 
  • A. John Dalton
  • B. Einstein
  • C. Neils Bohr
  • D. Ruther Ford