Question

hydrogen fuel cells are an alternative energy resource that can be widely used to power fuel cell electric vehicles.
which of the following is an advantage of using hydrogen as a fuel for vehicles?
choose 1 answer:
a hydrogen is naturally abundant in its gaseous (h₂) form.
b hydrogen fuel is safe and easy to transport.
c hydrogen fuel cells emit no co₂.
d hydrogen fuel technology is affordable.

Explanation:

• Option A: Hydrogen in gaseous ($\ce{H_2}$) form is not naturally abundant; it's mostly bonded in compounds like water. So A is incorrect.
• Option B: Hydrogen is highly flammable and requires special handling for transport, so it's not safe and easy to transport. B is incorrect.
• Option C: Hydrogen fuel cells produce electricity by reacting hydrogen and oxygen, with water as the main by - product, and no $\ce{CO_2}$ emissions. This is a key advantage.
• Option D: Currently, hydrogen fuel technology is relatively expensive due to production, storage, and infrastructure costs. D is incorrect.

Answer:

C. Hydrogen fuel cells emit no $\ce{CO_2}$.