Question

The main disadvantage of using alcohol as a fuel in comparison to petrol is

• A. Its low calorific value
• B.
  Its high calorific value
• C.
  Its low purchasing cost
• D.
  Its difficulty in extraction

Answer 1

The correct option is A Its low calorific value

Calorific value of alcohol (30,000 kJ/kg) is less than that of petrol (45,000 kJ/kg).

Hence, the correct answer is option (1).