0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

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

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

The statement A is not true about combustion.
In case of chimney, when air enters from below, the candle burns freely. If there is no supply of air from below, the candle cannot burn freely. This is because air supply is essential for combustion.

Was this answer helpful?
0
Similar Questions
Q1

Why does the flame of a burning candle goes off when we blow over it strongly?

View Solution
Q2
If you fix a burning candle on a petri dish, it will continue to burn, but when you put an inverted beaker over it, the flame goes off. Why does this happen?
View Solution
Q3
The air just above the flame of burning candle will ____________.
View Solution
Q4
Air is less dense than exhaust from chimneys. Why or why not ?
View Solution
Q5
The products formed when a candle burns in air are:
View Solution