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Combustion and Flame — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceCombustion and Flame1 Mark
MCQ
Choose the incorrect statement from the following.
A good fuel is one which:
  • A
    Is readily available.
  • B
    Produces a large amount of heat.
  • ✓
    Leaves behind many undesirable substances.
  • D
    Burns easily in air at a moderate rate.
✓

Answer

Correct option: C.
Leaves behind many undesirable substances.

A good fuel does not produce any harmful gases or leaves any residue after burning. So, incorrect statement is option $(c)$.

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