Which among the following gas has lowest auto-ignition temperature?

Practice MCQ for SSC, UPSC, RRB Exams

A. Methane A.
B. Hydrogen B.
C. Ethylene C.
D. Carbon Di Sulphide D.

Correct Answer: D সঠিক উত্তর: D

Explanation ব্যাখ্যা

The auto-ignition temperature of a liquid, gas or vapor is the temperature at which the substance will ignite without any external heat source. Here is the temperature of some gases:

Methane : 580 °C
Hydrogen : 560 °C
Propane : 493 °C
Ethylene : 425 °C
Acetylene : 305 °C
Naphtha : 290 °C
Carbon disulfide : 102 °C

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