General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 16)
16.
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
Discussion:
49 comments Page 2 of 5.
Ahmed ismail said:
8 years ago
A mixture of 80% helium and 20% oxygen is used as an artificial atmosphere for deep-sea divers and others working under pressurised conditions.
Chester said:
8 years ago
Helium - It is stable and lighter than other given gases hence it is easy to carry.
SASI said:
8 years ago
Helium is an inert gas and it can't make any reactions.
Akshita said:
8 years ago
Because helium is not harmful for human being and it was used as oxygen in deep sea.
Ijaz ul haq said:
8 years ago
Why other inert gases like xenon and krypton, are not used?
Pavithran of sri gurukulam hosur said:
9 years ago
Heli-air is a form of trimix that is easily blended with helium and air without using pure oxygen. It always has a 21:79 ratio of oxygen to nitrogen; the balance of the mix is helium. Hydreliox is a mixture of oxygen, helium, and hydrogen and is used for dives below 130 metres in commercial diving.
Irfan Maahir said:
9 years ago
Helium is the right answer.
Prasanna said:
9 years ago
Thank you all for an explanation.
Leki wangmo said:
9 years ago
Helium cannot react with the other gas and so it is an inert gas.
Nishant sharma said:
9 years ago
Helium is used by sea diver instead of Nitrogen because helium is not react with blood while nitrogen react with blood this cause pain in human body so helium is used because it cause less pain.
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