Question:

The lowest temperature at which a liquid generates enough vapor to form an ignitable mixture in the air is known as

Show Hint

Flash point = A quick "flash" of fire. Fire point = Sustained burning.
  • Pour point
  • Pen point
  • Flash point
  • Aniline point
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The Correct Option is C

Solution and Explanation


Step 1: Concept

This is a critical safety parameter for fuels and lubricants used in agricultural machinery.

Step 2: Meaning
"Ignitable" means the vapor will catch fire momentarily when an ignition source is introduced.

Step 3: Analysis

The flash point indicates the volatility and flammability risk of the liquid. The fire point is typically higher, where the liquid continues to burn.

Step 4: Conclusion

The defined term is the Flash point.
Final Answer: (C)
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