Question

1.Write uses of the following

a. Helium=
b. Neon=


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Answer 1

uses of helium
helium is used in balloons
helium is used in rocket feuls
helium is used in welding
uses of neon
neon is used in glow lamps
neon is used in high voltage indicators.
neon is used in discharge tubes
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Answer 2

# Hellium is much less dense (lighter) than air and is used in large ballons with 'flammable' consequences. Helium is less soluble in water than nitrogen. When inhaled it dissolves in the bloodstream in smaller quantities than nitrogen.

# Neon is used in the familiar 'neon sign" used in advertisement. The brilliant red glow is caused by the passage of electric current through neon gas under low pressures

The color of the light given by mixing mercury vapor and argon with the neon.

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