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Question

Which of the following is not true about combustion?
  1. In case of chimney when air does not enters from below, the candle burns freely.
  2. In case of chimney candle burns freely when air enters from below the chimney.
  3. In case of chimney when air does not enters from below, the flame flickers and produces smoke.
  4. In the absence of air candles flame flickers but does not goes off.

A
In case of chimney when air does not enters from below, the candle burns freely.
B
In case of chimney when air does not enters from below, the flame flickers and produces smoke.
C
In case of chimney candle burns freely when air enters from below the chimney.
D
In the absence of air candles flame flickers but does not goes off.
Solution
Verified by Toppr

The correct option is A In case of chimney when air does not enters from below, the candle burns freely.
In the case of the chimney when air does not enters from below, the candles flame flickers and produces smoke.

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