Free gk questions Online Test - MeritNotes

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1. A metal which is extracted by thermal reduction is
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
2. Which one of the following is used as a mordant in dying and tanning industry?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
3. Which of the following is the lightest gas?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
4. Which one of the following is not biodegradable?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
5. Sodium metal is kept under
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
6. Which among the following is a solid non-metal?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
7. What is main component of Biogas?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
8. Which of the following contains high content of lead?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
9. Which type of glass is used for making glass reinforced plastic?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
10. Which of the following is used in dry cleaning
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
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