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UPSC 2001: An aqueous solution of copper sulphate is acidic in nature because the salt undergoes
(a)dialysis
(b)electrolysis
(c)hydrolysis
(d)photolysis
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Not attemptedCorrect Answer: (c) hydrolysis
CuSO₄ originates from a strong acid (H₂SO₄) and a weak base (Cu(OH)₂). In water, the Cu²⁺ ion undergoes cationic hydrolysis (Cu²⁺ + 2 H₂O ⇌ Cu(OH)₂ + 2 H⁺), releasing H⁺ and rendering the solution acidic; therefore hydrolysis is responsible. ([licchavilyceum.com](https://licchavilyceum.com/upsc-civil-services-prelims-2001-solved-question-paper/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2001 Science & Technology question?▼
The correct answer is option (c): hydrolysis. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Chemistry question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2001, GS Paper 1, as Question 120. It falls under Science & Technology > Chemistry.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Chemistry?▼
UPSC has asked 53 questions from Chemistry (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.