Question

Which of the following compound has a least heating value?

• A. Alcohol
• B. Biogas
• C. Wood
• D. Coal

Answer 1

The correct option is C

Wood

Explanation for the correct option-

Option (C)

1. Heating value or calorific value is defined as the amount of heat released when a specific amount of that substance is burnt.
2. So, wood has the lowest calorific value among all the given options.

Explanation for the incorrect options-

1. Among the options alcohol, biogas and coal has more calorific value in comparison to wood.
2. So, these are the incorrect options according to the question.

Hence, option (C) is the correct answer.