sblock Elements 1 Question 21
21. The hottest region of Bunsen flame shown in the figure given below is
(2016 Main)
(a) region 2
(b) region 3
(c) region 4
(d) region 1
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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)