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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

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1. Which of the following gas is used in cigarette lighters ?

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Answer: Option A

2. Water drops are spherical because of ?

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Answer: Option D

3. 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
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Answer: Option B

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  • methyl alcohol
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Answer: Option A

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Answer: Option A

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