NCERT Question 14 - Chapter 4 Class 10 - Carbon and its Compounds

Last updated at April 16, 2024 by

Give a test that can be used to differentiate chemically between butter and cooking oil.

 

Answer:

BUTTER WILL NOT DECOLORIZE KMNO4 - Teachoo.jpg

OIL DECOLORIZES KMnO4 - Teachoo.jpg

  • Butter is a saturated compound whereas cooking oil is unsaturated.
  • Hence, if we add alkaline potassium permanganate (alk KMnO 4 ) which is pink in color to the cooking oil, it will decolorize potassium permanganate.  
  • However, this will not happen in the case of butter because it is saturated.
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CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo