Tag: combustion

Questions Related to combustion

Innermost zone is the _______.

chemistry combustion and flame structure of flame flame combustion

  1. hottest part

  2. moderately hot part

  3. least hot part

  4. cold part

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Correct Option: C
Explanation:

The innermost zone is the least hot part black in colour. This is due to the unburned wax vapor.

Yellow colour in the flame denotes __________.

chemistry combustion and flame structure of flame flame combustion

  1. outermost part

  2. middle zone

  3. innermost zone

  4. none of these

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Correct Option: B
Explanation:

The middle zone is moderately hot and is yellow in color. This is because of partial combustion.