STD-X
CIENCE-1
10 marks
*Find out the application of any five inert gases and write 5-6 characteristic of
each.
10 marks
SCIENCE2
Answers
Explanation:
Application and Characteristic of Helium:
*Helium is used for the treatment of asthma, emphysema and other breathing problems.
*Helium is used in balloons.
*Helium is used in welding.
*Helium is used in industries for preventing
explosions.
*Helium is used for cryogenics.
Application and Characteristic of Argon:
*Argon is often used when an inert atmosphere is
needed.
*It is used in for the production of titanium and
other reactive elements.
*It is also used by welders to protect the weld
area.
*It is also used to protect incandescent light
bulbs to stop oxygen from corroding the filament.
*Argon is used mainly to provide an
inert atmosphere in high
temperature metallurgical process (arc welding of metals or alloys) and for filling electric bulbs.
Application and Characteristic of Neon:
*Neon is used in discharge tubes
and fluorescent bulbs for
advertisement display purposes.
*Neon bulbs are used in botanical gardens and in green houses.
*Neon gas is used in advertising signs.
*Liquid neon is used as a cryogenic refrigerant.
*Neon is also used to make high voltage indicators and is combined with helium to make helium-neon lasers.
Application and Characteristic of Xenon:
*Xenon is used in photographic flashes.
*It is used in high pressure arc lamps for motion picture projection, and in high pressure arc lamps to produce ultraviolet light.
*Inhalation of Xenon in excessive concentrations can result in dizziness, nausea, vomiting, loss of consciousness, and death.
*Like the other noble gases, while passing a high voltage through xenon, it glows with a beautiful blue color.
*Xenon (xenon xe-133 systemic) is a member of the drug class diagnostic radio pharmaceuticals and is used to treat Diagnosis and Investigation.
Application and Characteristic of Krypton:
*Krypton is used commercially as a filling gas for energy-saving fluorescent lights.
*It is also used in some flash lamps used for high-speed photography.
*Unlike the lighter gases in its group, it is reactive enough to form some chemical compounds.
*The intense krypton laser light causes the blood to clot during the surgery, thus preventing further bleeding with subsequent loss of vision, and the laser is so accurate that surrounding tissues are not damaged.
*Krypton is also used as a standard because the spectral lines of its isotopes are very sharp.
Answer: