MHT CET202611 April 2026Morning ShiftChemistryIonic EquilibriumActual
What happens when CuSO ₄ is dissolved in water? Identify correct statements from the following
Options
- AAnion of the salt react with water.
- BIts solution will turn red litmus into blue.
- CThe pH of the solution will be less than 7 .
- DThe CuSO ₄ will not undergo hydrolysis reaction.
Correct answer
C. The pH of the solution will be less than 7 .
Step-by-step solution
CuSO ₄ is a salt of a weak base ( Cu(OH) ₂ ) and a strong acid ( H ₂ SO ₄ ). When dissolved in water, the Cu ²⁺ cation undergoes hydrolysis to produce H ^+ ions: Cu ²⁺ + 2 H ₂ O Cu(OH) ₂ + 2 H ^+ Due to the generation of H ^+ ions, the solution becomes acidic. Therefore, the pH of the solution will be less than 7 . The anion SO ₄²⁻ does not undergo hydrolysis as it is derived from a strong acid. An acidic solution turns blue litmus red, not red litmus blue. Answer: The pH of the solution will be less than 7 .