Which noble gas is used in glowing advertising signs giving a reddish-orange colour?
A
Argon
B
Helium
C
Neon
D
Krypton
Correct Answer: Option C — Neon
Explanation:
Neon gas is used in neon signs and emits a characteristic reddish-orange glow when electricity passes through it due to the excitation of it...
Neon gas is used in neon signs and emits a characteristic reddish-orange glow when electricity passes through it due to the excitation of its electrons.