Verified Solution • 2025–26 Session moderate

QJEEM22Ch864e: JEE Main 2022 Chemistry - Class 12 JEEM22Ch864e Solution: Given below are two statements : Statement I : Emulsions of oil …

Given below are two statements :

Statement I : Emulsions of oil in water are unstable and sometimes they separate into two layers on standing.

Statement II : For stabilisation of an emulsion, excess of electrolyte is added.

In the light of the above statements, choose the most appropriate answer from the options given below :

Multiple Choice Options

  • A Both Statement I and Statement II are correct.
  • B Both Statement I and Statement II are incorrect.
  • C Statement I is correct but Statement II is incorrect.
  • D Statement I is incorrect but Statement II is correct.

Step-by-Step Verified Solution

Oil in water emulsions can sometimes separate into two layers on standing.

The most relevant example for the above case is milk, which can separate into two layers on standing for a longer time. Therefore, statement (I) is correct.

On adding excess of electrolyte, coagulation occurs and emulsion is further destabilised.

Therefore, statement (II) is incorrect.

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