Chemistry General Knowledge Questions and Answers

9. Rectified spirit contains
  A.  18% ethanol
  B.  75% ethanol
  C.  95.6% ethanol
  D.  100% ethanol
Answer
Ans: C
95.6% ethanol
10. Which of the following solutions should have the pH greater than seven?
  A.  Neutral
  B.  Water
  C.  Acidic
  D.  Basic
Answer
Ans: D
Basic
11. The rate of chemical reaction generally
  A.  Increases with decrease in temperature
  B.  Decreases with increase in temperature
  C.  Does not change with temperature
  D.  Increases with increase in temperature
Answer
Ans: D
Increases with increase in temperature
12. The first metal used by man was
  A.  Gold
  B.  Silver
  C.  Iron
  D.  Copper
Answer
Ans: D
Copper
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