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Which have maximum number of isotopes ?

  • Bromine
  • Aluminium
  • Polonium
  • Carbon

Answer: Option C

Similar Questions :

1. Permanent hardness of water is due to the presence of ?

  • Magnesium bicarbonate
  • Calcium bicarbonate
  • Sodium bicarbonate
  • Calcium sulphate

Answer: Option D

2. The metal that is used as a catalyst in the hydrogenation of oils is ?

  • Pb
  • Ni
  • Cu
  • Pt

Answer: Option B

3. How many different oxides are formed by nitrogen ?

  • two
  • three
  • four
  • five

Answer: Option A

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

  • Butane
  • Propane
  • Methane
  • Ethane

Answer: Option A

5. Which of the following elements behave chemically both as a metal and a non metal?

  • Boron
  • Carbon
  • Argon
  • Mercury

Answer: Option A

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