Which of the following statements regarding fuel cell is incorrect?

A
These cells are eco-friendly.
B
These cells convert energy of combustion of fuels like H₂, CH₄, CH₃OH etc., directly into electrical energy.
C
H₂ – O₂ fuel cell is used in Apollo space programme.
D
Fuel cells produce electricity with an efficiency of about 100%.

Fuel cells produce electricity with an efficiency of about 70% compared to thermal plants whose efficiency is about 40%.

Related content

Modal Verbs

Helping Verbs

Action Verbs