Question

Choose the incorrect statement from the following.​

A good fuel is one which:​

• A. is readily available.​
• B. produces a large amount of heat.​
• C. leaves behind many undesirable substances.​
• D. burns easily in the air at a moderate rate.​

Answer 1

The correct option is C leaves behind many undesirable substances.​

Correct answer - (c): leaves behind many undesirable substances.​

A good fuel should not leave behind any undesirable substances.​

• A good fuel is one which is readily available.​

• Produces a large amount of heat and burns easily in the air at a moderate rate because of burning at a faster rate produces less amount of heat.​

• Incomplete combustion of the fuel lead to formation of undesirable and poisonous substances (like carbon monoxide). ​