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Question Detail

The chemical used as a fixer in photography is ?

  • sodium thiosulphate
  • sodium sulphate
  • borax
  • ammonium sulphate

Answer: Option A

Similar Questions :

1. The most abundant element in the earth's crust is ?

  • Aluminium
  • Nitrogen
  • Silicon
  • Oxygen

Answer: Option D

2. Contact lenses are made from ?

  • Polyvinyl chloride
  • Teflon
  • Polystyrene
  • Lucite

Answer: Option A

3. Elements that show the properties of both metals and non metals are called ?

  • metalloids
  • allotropes
  • alloys
  • colloids

Answer: Option A

4. What is hottest part of the gas flame is called ?

  • blue zone
  • luminous zone
  • dark zone
  • non-luminous zone

Answer: Option D

5. A catalyst is a substance which

  • increases the activation energy
  • increases the rate of reaction and increases the equilibrium concentration of products
  • changes the equilibrium of a reaction so that the concentration of the product increases
  • hastens the attainment of equilibrium

Answer: Option D

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