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Question Detail

Human bone does not contain

  • calcium
  • carbon
  • oxygen
  • phosphorous

Answer: Option C

Explanation:

Human bone contains calcium, carbon, phosphorous.

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  • sulphuric acid
  • hydrochloric acid
  • phosphoric acid

Answer: Option B

2. Which is used in preparation of dynamite ?

  • glycerol
  • ethyl alcohol
  • methyl alcohol
  • glycol

Answer: Option A

3. Nail polish remover contains ?

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  • acetone
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Answer: Option C

4. Natural rubber is a polymer derived from ?

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Answer: Option C

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

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Answer: Option D

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