Which is Substituted for Nitrogen in the Air Used by Deep Sea

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is

  1. Neon
  2. Krypton
  3. Argon
  4. Helium
Manish Listener Asked on 4th June 2015 in Chemistry.
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    Answer: (4) Helium

    RE: Which is Substituted for Nitrogen in the Air Used by Deep Sea


    Symbol of helium = He
    Atomic number of helium = 2
    Atomic weight of helium = 4

    It is the second element on the periodic table. It is lighter than air so it is used in the birthday balloon and in the tires of the aeroplane.  It is noble gas and belong to the group of non reactive gasses. It has the lowest melting point and boiling point of the elements. 

    It is colorless, tasteless nad odorless. mostly helium is obtained from the natural gas. It is monotonic under standard conditions. 

    Anurag Mishra Professor Answered on 6th June 2015.
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