Question detail

When alkenes undergo combustion, what type of flame do they typically produce?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Reactions of alkenes and alcohols (chemistry only)

Question

A. Smoky flame
B. Bright yellow flame
C. Blue flame
D. No flame

Answer

The correct option is Smoky flame.

Explanation

The correct option is "Smoky flame" because it supports the approved learning objective: Write balanced equations for combustion reactions of alcohols. The other options are incorrect or weaker because they are vague, use the wrong Chemistry context, or do not clearly explain the answer for Alcohols.

Common mistake

Common Mistake in Combustion Equations

Students often forget to balance the number of carbon, hydrogen, and oxygen atoms in the combustion equations for alcohols.

Always check that the number of atoms of each element is the same on both sides of the equation. Practice balancing equations step by step.

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