The fuel with the highest cetane number is: MCQ with Answer and Explanation

Question

Share Report Error

The fuel with the highest cetane number is:

A. Petrol

B. Kerosene

C. Methane

D. Diesel

Answer: Option D

Solution (By JKExamLibrary)

Cetane number measures ignition quality of diesel fuel; higher cetane means easier ignition. Diesel has high cetane (40-55). Petrol has octane number. Methane is gas.

This question belongs to: Science chemistry

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More chemistry Questions

Question #1

The alloy bronze contains copper and:

A. Aluminium

B. Tin

C. Zinc

D. Lead

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option B

Explanation:
Bronze is Cu + Sn. Brass is Cu + Zn. Solder is Pb + Sn. Duralumin is Al + Cu + Mg. Bronze was one of the earliest alloys used by humans.

This question belongs to: Science chemistry

Question #2

A gas occupies 300 mL at 27°C. At constant pressure, what will be the volume at 0°C?

A. 327 mL

B. 300 mL

C. 250 mL

D. 273 mL

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option D

Explanation:
Charles' law: V₁/T₁ = V₂/T₂. T₁ = 300 K (27+273), V₁=300 mL; T₂=273 K. V₂ = 300 × (273/300) = 273 mL. Volume decreases as temperature decreases.

This question belongs to: Science chemistry

Question #3

The process of heating an ore strongly in the absence of air is called:

A. Roasting

B. Leaching

C. Smelting

D. Calcination

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option D

Explanation:
Calcination is the process of heating a concentrated ore strongly in the absence or limited supply of air. It is typically used for carbonate ores to drive off volatile impurities like CO₂ and H₂O (e.g., CaCO₃ → CaO + CO₂). Roasting is done in the presence of excess air.

This question belongs to: Science chemistry

Explore All chemistry MCQs