Post-UTME Chemistry 2005 Objective — Question 17

Question 17 of 27 from the Post-UTME Screening (Post-UTME) Chemistry 2005 Objective paper, with the correct answer and a full explanation.

The non-luminous Bunsen flame has the following characteristics except

A. the flame is hotter
B. the flame is cleaner
C. the flame enters the tube to consume incoming fuelCorrect
D. only three/ones can be seen in the flame

Explanation

The flame does not enter the burner tube to consume incoming fuel; this describes flashback, an abnormal/undesirable condition, not a normal characteristic of the non-luminous flame.

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