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  4. Noble gases are used in discharge tubes to give different colours. Reddish-orange glow is due to

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Q. Noble gases are used in discharge tubes to give different colours. Reddish-orange glow is due to

JIPMERJIPMER 2011The p-Block Elements - Part2

Solution:

Neon when used in a discharge tube produces an orange-red glow which can be seen at long distances even in mists and fogs.