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What is the hardest form of carbon ?

  • coke
  • graphite
  • charcoal
  • diamond

Answer: Option D

Similar Questions :

1. What is metallurgy ?

  • process of extracting metal in pure form from its ore.
  • process of creating alloys of metals.
  • process of making metals live long.
  • None of above.

Answer: Option A

2. The main chemical constituent of clay is ?

  • aluminium silicate
  • zeolites
  • aluminium borosilicate
  • silicon oxide

Answer: Option A

3. Which element found in all organic compounds ?

  • carbon
  • nitrogen
  • calcium
  • none of them

Answer: Option A

4. Ozone is :

  • Non-magnetic
  • Paramagnetic
  • Ferromagnetic
  • Diamagnetic

Answer: Option D

5. Alloys made with mercury as one metal are called ?

  • mixtures
  • emulsions
  • solders
  • amalgams

Answer: Option D

Read more from - Chemistry Questions Answers
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