Free trb questions Online Test - MeritNotes

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1. Which one of the following metal is the heaviest?
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
2. Ultrasonic sound has the frequency of
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
3. Chlorine is mixed in water so that
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
4. Sickle-cell anemia is a disease caused due to the abnormality in
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
5. Covalent compounds are insoluble in
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
6. The natural dye present in turmeric is known as
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
7. Hydrogen peroxide does not act as
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
8. Phosgene is obtained by the reaction of carbon monoxide and
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
9. Hydrogen has ___ isotopes.
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
10. The halogen, which is a dangerous reactive pale yellow gas is
 
  • (a) 
  • (b) 
  • (c) 
  • (d) 
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