which of the following inert gas is used in advertising signs ?
a) helium
b) argon
c) neon
d) nitrogen
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Answer:
neon
Explanation:
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answer: neon
Neon is chemically inert, and no uncharged neon compounds are known. ... Neon gives a distinct reddish-orange glow when used in low-voltage neon glow lamps, high-voltage discharge tubes and neon advertising signs.
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