Question

Noble gases are used in discharge tubes to gives different
colours. Reddish orange glow is due lo
(a) Ar (b) Ne
(c) Xe (d) Kr

Answer 1

Nobel gases are used in discharge tubes to give different colours and reddish orange glow is due to Neon(Ne) gas.

Answer 2

Noble gases are used in discharge tubes to gives different  colors. Reddish orange glow is due to Neon.

Explanation:

When neon used in low voltage then neon gives distinct reddish glow.

Discharge tube is in high voltage then neon will glow reddish orange.

Noble gases

• It is the inert gases.
• It is referred as aerogens.
• Using the property, it makes the group of elements.
• When conditions are standard, colorless, odorless and monatomic gases.
• In periodic table, group 18 are elements of noble gases.
• There six noble gases,

1. Helium
2. Neon
3. Argon
4. Xenon
5. Krypton
6. Radon

• On various factors, the color of the gas discharge emitted was determined.
• The discharge parameters are temperature, electric field and current density.
• The color can be affected by fraction of some gases in purity of gases.

To learn more;

1. https://brainly.in/question/1441242
2. https://brainly.in/question/13582558