In the given figure, different zones of a candle flame are marked by the letters P, Q, R and S.

Which of the following statements is/arc incorrect?
(i) P is the luminous zone and is the hottest part of candle flame.
(ii) In zone Q, there is inadequate supply of oxygen.
(iii) Zone R contains unburnt wax vapours produced by melting of wax.
(iv) In zone S, carbon monoxide burns with a yellow flame.

Options

A. (i) only
B. (ii), (iii) and (iv) only
C. (i) and (iv) only
D. (i), (ii) and (iii) only

Answer

C

Explanation

P is non-luminous zone and in zone S carbon monoxide burns with a blue flame.