Question Detail

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

  • Boron
  • Carbon
  • Argon
  • Mercury

Answer: Option A
Similar Questions :

1. Who proposed first atomic theory ?

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

Answer: Option C

2. How many different oxides are formed by nitrogen ?

  • two
  • three
  • four
  • five

Answer: Option A

3. Air is a

  • compound
  • colloid
  • element
  • mixture

Answer: Option D

4. Oil of vitriol is

  • nitric acid
  • sulphuric acid
  • hydrochloric acid
  • phosphoric acid

Answer: Option B

5. Which of the following gases is the most toxic?

  • Carbon dioxide
  • Sulphur dioxide
  • Carbon monoxide
  • Acetic acid

Answer: Option C

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