Which gas is often used in advertising signs? MCQ with Answer and Explanation

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Which gas is often used in advertising signs?

A. Nitrogen

B. Oxygen

C. Neon

D. Hydrogen

Answer: Option C

Solution (By JKSSB Mock Tests)

Neon gas glows brightly when electrical current passes through it.

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Which metal is liquid at room temperature?

A. Bromine

B. Gallium

C. Sodium

D. Mercury

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Correct Answer: Option D

Explanation:
Mercury is the only metal that is liquid at standard temperature and pressure.

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Question #2

What is the purpose of 'Cybersecurity'?

A. To make internet speed faster

B. To store backup files

C. To improve computer graphics

D. To protect digital systems from attack

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Correct Answer: Option D

Explanation:
Cybersecurity protects networks, computers, and data from unauthorized access or damage.

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Question #3

SSLV is developed for launching:

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Correct Answer: Option C

Explanation:
Small Satellite Launch Vehicle is for small payloads.

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