Question

26. ________ is used in advertisement glow tubes.

• A. neon
• B. helium
• C. argon
• D. nitrogen

Answer 1

The correct option is A

neon

Explanation for correct option:

(A):

• Neon $\left(\mathrm{Ne}\right)$ is a component of air and is present in trace amounts.
• It is highly unreactive in nature so it is called inert gas.
• It is used in the advertisement of glow tubes.

Explanation for incorrect options:

(B): Helium $\left(\mathrm{He}\right)$ is a component of air and is a highly unreactive gas. It is used to fill weather-observation balloons.

(C): Argon $\left(\mathrm{Ar}\right)$ is a component of air and is a highly unreactive gas. It is used in electric light bulbs.

(D): Nitrogen $\left({\mathrm{N}}_2\right)$ is the major component of air. It is used in diluting the activity of Oxygen$\left({\mathrm{O}}_2\right)$.

Hence, option (A) is the correct answer. Neon is used in advertisement glow tubes.