Multiple choice

Which two liquids form a separate layer over the surface of water?

  1. Vinegar and lemon juice

  2. Kerosene and mustard oil

  3. Sugar syrup and alcohol

  4. Dettol and hydrochloric acid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vinegar, lemon juice, dettol, acids, alcohol, etc. are all water-soluble and do not form a layer when dissolved in water. On the other hand, kerosene oil and mustard oil are not soluble in water and form a separate layer. Oil generally being lighter, forms the upper layer. 

Keep practicing — related questions