Question

The different zones of a candle flame are marked by the letters A, B and C.



Which of the following is correct with respect to the zones of the candle?

• A. Zone A is the hottest part of the flame.
• B. Zone B is moderately hot.
• C. Zone B is the hottest part of the flame.
• D. Zone C is moderately hot.

Answer 1

The correct option is C Zone B is the hottest part of the flame.

$\bullet$ Zone B of the flame undergoes complete combustion. So, this is the hottest part of the flame.
$\bullet$ Zone A undergoes partial combustion. So, this zone is moderately hot.
$\bullet$ Zone C is the innermost part of the flame with unburnt wax vapours. So, it is the least hot zone of a flame.