Acme Ai
A
अ
GS Paper IUPSC Prelims 2001
Health & Medicine
Question No. 328Interactive Test Mode
00:00
+2-0.66

Q328. An aqueous solution of copper sulphate is acidic in nature because the salt undergoes:

An aqueous solution of copper sulphate is acidic in nature because the salt undergoes:

Select the correct option below (or cross out options to eliminate)
PrevNext Question

Official Answer Key & Detailed Solution

3D PYQ Realm

Ready to check the official UPSC Answer Key?

Click any option above to test yourself under exam conditions, or reveal the explanation directly.

Official UPSC Answer KeyUPSC Prelims 2001 • Science and Technology

Correct Answer: Option (C) — Hydrolysis

Concept & Option Breakdown

Standard Reference Verified

Copper sulphate ($\text{CuSO}_4$) is a salt of a weak base ($\text{Cu(OH)}_2$) and a strong acid ($\text{H}_2\text{SO}_4$). In aqueous solution, the copper cations undergo cationic hydrolysis: $\text{Cu}^{2+} + 2\text{H}_2\text{O} \rightleftharpoons \text{Cu(OH)}_2 + 2\text{H}^+$, which generates an excess of $\text{H}^+$ ions, rendering the solution acidic.

Elimination Heuristic & Exam Approach

Salts of strong acid + weak base produce acidic solutions via cationic hydrolysis.

Reviewed by Avinash Sir & Acme AI Research Team

Practice Full-Length & Sectional Prelims Mocks on this Interface

50 simulated tests in the APT Prelims Test Series (₹1,493) or 1-on-1 Mentorship with Avinash Sir.

1-on-1 MentorshipOpen Test Platform

Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2001 (Q328)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (C) — Hydrolysis

More PYQs from Science and Technology (Health & Medicine)

Master the Science and Technology syllabus cluster by practicing these related previous year questions.

View All Science and Technology PYQs
2004 • Q321Health & Medicine

Consider the following statements: 1. Baking soda is used in fire extinguishers. 2. Quick lime is used in the manufacture of glass. 3. Gypsum is used

Science and TechnologyPractice
2004 • Q322Health & Medicine

Salts of which of the following elements provide colours to fireworks?

Science and TechnologyPractice
2003 • Q323Health & Medicine

Which one of the following statements is NOT correct?

Science and TechnologyPractice
2003 • Q324Health & Medicine

Given below: Assertion (A): In the periodic table of chemical elements, electron affinity is always found to increase from top to bottom in a group Re

Science and TechnologyPractice
2003 • Q325Health & Medicine

Assertion (A): Coal-based thermal power stations contribute to acid-rain. Reason (R): Oxides of carbon are emitted when coal burns.

Science and TechnologyPractice
2002 • Q326Health & Medicine

Match List-I (Oxidation number) with List II (The element) and select the correct answer using the codes given below the lists: | List-I (Oxidation n

Science and TechnologyPractice
2002 • Q327Health & Medicine

Assertion(A): Synthetic detergents can lather well in hard water. Reason (R): Synthetic detergents form soluble calcium and magnesium salts with hard

Science and TechnologyPractice
2001 • Q329Health & Medicine

Consider the following statements with reference to the periodic table of chemical elements: 1. Ionisation potential gradually decreases along a perio

Science and TechnologyPractice

Frequently Asked Questions — UPSC Prelims 2001 Q328

What is the official answer for UPSC Prelims 2001 GS Paper I Question 328 (Science and Technology)?

The official UPSC answer key for this 2001 Science and Technology (Health & Medicine) question is Option (C): "Hydrolysis". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2001 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

Salts of strong acid + weak base produce acidic solutions via cationic hydrolysis.

Beyond Previous Year Questions

Structured Prelims Practice & Mentorship

Pair previous year question analysis with full-length simulated mock tests and 1-on-1 faculty guidance.

APT 2027 • 50 Prelims Tests17% OFF

Acme Prelims Test Series (APT)

Built to eliminate 1/3rd negative marking losses and 50–50 option traps through structured simulation and NCERT-backed keys.

  • 50 High-Yield Tests: Subject Sectionals, Current Affairs, CSAT Paper II & Full-Length Simulators
  • 1/3rd Penalty & Trap Analytics: Identify whether marks are lost to over-attempting or conceptual gaps
  • Option-by-Option NCERT Keys: Detailed distractor analysis and elimination logic for every question
  • Custom PDF-to-Mock Generator: Convert your revision notes or current affairs PDFs into practice tests
Complete 50-Test Package
₹1,493₹1,799• Valid till Prelims 2027
Explore APT Test SeriesTry Free Mock
1-on-1 Personal MentorshipCapped at 10 Seats

1-on-1 UPSC Mentorship with Avinash Sir

Weekly 1-on-1 strategy reviews, daily study accountability, and personalized MCQ attempt audits with an experienced UPSC mentor.

  • Weekly 1-on-1 Sessions: Direct mentorship with Avinash Sir (Former Plutus IAS Mentor, UPSC & UPPCS Mains Written)
  • APT 50-Test Series Included: Full Prelims GS1 & CSAT test series bundled at no additional cost
  • Mock Attempt & Elimination Audit: Question-by-question review to calibrate your risk and attempt accuracy
  • Prelims & Integrated Tracks: Available as dedicated Prelims mentorship or end-to-end Prelims + Mains guidance
Prelims & Integrated Tracks
17% OFF• Includes APT 50-Test Series
Explore 1-on-1 MentorshipCompare Tracks
Previous QuestionConsider the following organizations: (2001) 1. Atomic Minerals Directorate for Research and Exploration 2. Heavy Water Board 3. Indian Rare Earths Limited 4. Uranium Corporation of India Which of these is/are under the Department of Atomic Energy?
Next QuestionConsider the following statements regarding the armed forces: (2001) 1. First batch of women pilots was commissioned in Indian Air Force in 1996 2. Officers’ Training Academy is located in Nagpur 3. Southern Command of the Indian Navy has its headquarters at Chennai . 4. One of the Regional Headquarters of Coast Guard is located at Port Blair Which of these statements are correct?