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Which element found in all organic compounds ?

  • carbon
  • nitrogen
  • calcium
  • none of them

Answer: Option A

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. Natural rubber is a polymer derived from ?

  • ethylene
  • propylene
  • isoprene
  • butadiene

Answer: Option C

3. Which acid is present in lemon ?

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

Answer: Option B

Explanation:

citric acid is present in lemon.

4. pH of blood is ?

  • 10.4
  • 9
  • 7.4
  • 4

Answer: Option C

5. Iodine can be separated from a mixture of Iodine and Potassium Chloride by ?

  • Filtration
  • Sublimation
  • Distillation
  • Sedimentation

Answer: Option B

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