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Acids, Bases and Salts — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceAcids, Bases and Salts1 Mark
MCQ
An example of a solution which is not in equilibrium is:
  • A
    Chemical pH indicator
  • B
    Acid/ base buffer
  • C
    Hypotonic solution
  • ✓
    Supersaturated solution
✓

Answer

Correct option: D.
Supersaturated solution
d.    Supersaturated solution
Explanation:
In a supersaturated solution, the amount of solute in the solvent is greater than the amount that solvent can dissolve. equilibrium exists when the dissolution and crystallization continue as long as excess solute is present which is analogous to vapor pressure which happens only in a saturated solution.

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