sblock Elements 1 Question 21

21. The hottest region of Bunsen flame shown in the figure given below is

(2016 Main)

alt text

(a) region 2

(b) region 3

(c) region 4

(d) region 1

Show Answer

Answer:

Correct Answer: 21. (a)

Solution: Region 1 (Pre-heating zone)

Region 2 (Primary combustion zone, hottest zone)

Region 3 (Internal zone)

Region 4 (Secondary reaction zone)