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Biogas majorly contains ?

  • Ethane
  • Methane
  • Hydrogen
  • CO

Answer: Option B

Similar Questions :

1. Which have the maximum density ?

  • Water
  • Benzene
  • Ice
  • Chloroform

Answer: Option A

2. What is a mixture of potassium nitrate powdered charcoal and sulphur called?

  • paint
  • aluminium
  • brass
  • gun powder

Answer: Option D

Explanation:

gun powder is the mixture of potassium nitrate powdered charcoal and sulphur.

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. Atomic number is equal to

  • Number of electrons
  • Number of nutron
  • Number of protons
  • Total number of protons and neutrons

Answer: Option C

5. Atomic number of an element gives

  • the number of nucleons in its atom
  • the number of electrons in its atom
  • the weight of the atom of the element
  • the total number of elementary particles in its atom

Answer: Option B

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