Chemistry General Knowledge Questions and Answers

13. An aqueous solution of sulphurdioxide forms
  A.  Sulphuric acid
  B.  Nitric acid
  C.  Sulphurous acid
  D.  Hydrochloric acid
Answer
Ans: C
Sulphurous acid
14. The setting of plaster of Paris can be catalyzed by adding
  A.  Borax
  B.  Alum
  C.  Lead oxide
  D.  Sodium chloride
Answer
Ans: D
Sodium chloride
15. Tannic acid is present in
  A.  Tea
  B.  Grapes
  C.  Lemon
  D.  Sour milk
Answer
Ans: A
Tea
16. Which of the following is a liquid at room temperature?
  A.  Duralumin
  B.  Bromine
  C.  Invar
  D.  Iodine
Answer
Ans: B
Bromine
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