Chemistry General Knowledge Questions and Answers

9. Calamine is the ore of
  A.  Copper
  B.  Aluminium
  C.  Zinc
  D.  Silver
Answer
Ans: C
Zinc
10. The alloy used in making space satellites is
  A.  Duralumin
  B.  Bronze
  C.  Aluminium bronze
  D.  Duralumin
Answer
Ans: A
Duralumin
11. The fluoride ore of aluminium is
  A.  Cryolite
  B.  Haematite
  C.  Bauxite
  D.  Corundum
Answer
Ans: A
Cryolite
12. Which one of the following carboxylic acids is present in the sting of red ant?
  A.  Acetic acid
  B.  Butyric acid
  C.  Lactic acid
  D.  Formic acid
Answer
Ans: D
Formic acid
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