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A.
contain more oxygen than nitrogen
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B.
rekindle a glowing splint
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C.
have no action on lime water
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D.
contain no water vapour
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E.
be free of noble gases
Correct Answer: Option C
Explanation
- Potassium hydroxide also absorbs carbon dioxide from the air.
- If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.
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