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Which one of the following is the softest?

  • sodium
  • iron
  • aluminium
  • lithium

Answer: Option A

Similar Questions :

1. What is laughing gas ?

  • nitrous oxide
  • nitric oxide
  • nitrogen oxide
  • nitrogen peroxide

Answer: Option A

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

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

Answer: Option D

3. The cyclotron is used to

  • accelerating particles
  • separating elements
  • purifying metals
  • making alloys

Answer: Option A

4. Acids taste

  • Sour
  • Sweet
  • May be both
  • None of both

Answer: Option A

5. Enzymes are

  • Fatty acids
  • Carbohydrates
  • Nucleic acids
  • Proteins

Answer: Option D

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