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Which gas is most commonly used in neon signs?

AArgon

BNeon

CKrypton

DXenon

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Answer and explanation

Correct Answer: B: Neon

Explanation: The correct answer is B: Neon. Neon gas is most commonly used in neon signs. When electricity passes through neon gas, it produces a characteristic reddish-orange glow. Other gases produce different colors in similar sign tubes.

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