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Atomic number is equal to

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

Answer: Option C

Similar Questions :

1. What is used to avoid melting of ice ?

  • Gelatine
  • Butane
  • Methane
  • Any acid

Answer: Option A

2. The cyclotron is used to

  • accelerating particles
  • separating elements
  • purifying metals
  • making alloys

Answer: Option A

3. Which gas is used to manufacture vanaspati from vegetable oil is

  • carbon dioxide
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  • hydrogen

Answer: Option D

4. pH of blood is ?

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  • 7.4
  • 4

Answer: Option C

5. Who proposed first atomic theory ?

  • E.Rutherford
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  • John Dalton
  • D.I.Mendeleef

Answer: Option C

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