The advantages of biodiesel over conventional petro-diesel are which of the following?

1.Biodiesel produces significantly lesser CO2 and SO2

2.It is non-renewable

3.It has a higher octane number

4.It can be used in any ratio with petro-diesel

5.It has a lower flash point

A1, 2 & 3 only

B2, 3 & 4 only

C1, 3 & 4 only ✓ Correct

D3, 4 & 5 only

Correct answer: (C) 1, 3 & 4 only

Explanation

Biodiesel emits markedly less CO2 and SO2 than petro-diesel, the advantage in Statement 1.

Statement 2 is mistaken, since biodiesel is renewable, made from vegetable oils and animal fats.

Its higher octane number in Statement 3 supports smoother combustion, a genuine benefit.

Statement 4 holds, as biodiesel blends with petro-diesel in any ratio in existing engines.

Statement 5 is wrong because biodiesel has a higher flash point, which also makes it safer to store.

Being biodegradable and low in sulphur, biodiesel further cuts particulate emissions.

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