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Human bone does not contain

  • calcium
  • carbon
  • oxygen
  • phosphorous

Answer: Option C

Explanation:

Human bone contains calcium, carbon, phosphorous.

Similar Questions :

1. What is used to avoid melting of ice ?

  • Gelatine
  • Butane
  • Methane
  • Any acid

Answer: Option A

2. Which acid is present in lemon ?

  • marlic acid
  • citric acid
  • lactic acid
  • tartaric acid

Answer: Option B

Explanation:

citric acid is present in lemon.

3. Which metal is heaviest ?

  • osmium
  • mercury
  • iron
  • nickle

Answer: Option A

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

  • metalloids
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  • alloys
  • colloids

Answer: Option A

5. Which of the following is produced during the formation of photochemical smog ?

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  • Hydrocarbons
  • Methane
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Answer: Option D

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