Chemistry HCS 2017 Mains Paper 1042 (Code 1042) - Haryana
- Year 2017
- Conducted By Haryana Government - HCS (Ex.Br.) & Other Allied Services
- Questions 5
- Maximum Marks 150
- Duration 3 Hours
- Languages English & Hindi
Exam Details
| Detail | Information |
|---|---|
| Examination | Chemistry |
| Year | 2017 |
| Conducting Body | Haryana Government - HCS (Ex.Br.) & Other Allied Services |
| Paper | Chemistry |
| Subject | Chemistry |
| Duration | 3 Hours |
| Maximum Marks | 150 |
| Number of Questions | 5 |
| Question Type | Mixed (descriptive + short notes) |
This dataset presents the Haryana HCS (Ex-Br.) Chemistry mains paper of 2017 (Code 1042). Page 1 contains exam header, time, maximum marks, and the compulsory Question 1 with a list of short-note topics to choose from. Page 2 provides repaired OCR content with multi-part questions focusing on electrode potentials, copper ion chemistry, diamagnetism of nitrogen, magnetic properties of 3d elements, lanthanide contraction, and the Nernst equation. The material also includes Heisenberg uncertainty principle, quantum numbers, Maxwell distribution of molecular velocities, and related physics-chemistry topics. The JSON structure aligns with SEO and meta-data needs, offering detailed FAQ, topical tags, keywords, and image SEO data for both pages.
Major Topics Covered
- Chemistry
- Electrochemistry
- Molecular Orbital Theory
- Magnetism
- Lanthanide Contraction
- Nernst Equation
- Heisenberg Uncertainty Principle
- Quantum Numbers
- Maxwell Distribution
- Electrode Potentials
- Copper Chemistry
- Diamagnetism
- 3d Transition Metals
- Stoichiometric Defects
- Semiconductors
- Fajan's Rule
- Claisen Condensation
- Conducting Polymers
- Quantum Yield
- Lattice Energy
Why This Paper is Important
- Useful for Chemistry preparation
- Helps understand the latest exam pattern
- Useful for practice and self-assessment
- Covers frequently asked General Studies topics
- Helpful for analysing question trends
Related Resources
Instructions
- CHEMISTRY (Code - 1042) रसायन विज्ञान (कोड - 1042) Time: 3 Hours Maximum Marks: 150 समय : 3 घंटे अधिकतम अंक : 150
- Note: (i) Attempt five questions in all.
- All questions carry equal marks.
- Question number 1 is compulsory.
- Answer any two questions from Part-I and two questions from Part-II.
- The parts of the same question must be answered together and must not be interposed between answers to other questions.
- In case of any discrepancy in the English and Hindi versions, English version will be
- (i) Attempt five questions in all.
- (ii) taken as final. नोट ः कुल पाँच प्रश्न हल कीजिए। सभी प्रश्नों के अंक समान हैं। प्रश्न संख्या 1 अनिवार्य है। भाग-। से
- (i) दो प्रश्नों तथा भाग-॥ से दो प्रश्नों का उत्तर दीजिए। एक प्रश्न के सभी अंशों का उत्तर एक साथ दीजिए। एक प्रश्न के अंशों का उत्तर दूसरे प्रश्न के अंशों के मध्य न ले जायें। यदि अंग्रेजी एवं हिन्दी विवरण में कोई विसंगति हो, तो अंग्रेजी विवरण अंतिम माना जायेगा
- (ii) Write short notes on any six of the following :
Questions (page 2)
Q2.
(a) 2. इलेक्ट्रोड विभव क्या है ? यह आयनिक विभव से किस प्रकार अलग है ? Copper
(II) salts are blue in colour, but copper
(I) salts are white, why ?
(a)
2. इलेक्ट्रोड विभव क्या है ? यह आयनिक विभव से किस प्रकार अलग है ? Copper
(II) salts are blue in colour, but copper
(I) salts are white, why ?
(b)
कापर
(II) लवण नीले रंग तथा कापर
(I) लवण सफेद होते हैं, क्यों ? Nitrogen molecule is diamagnetic. Explain on the basis of molecular orbital theory.
(c) नाइट्रोजन अणु प्रतिचुम्बकीय है। आणविक कक्षक सिद्धान्त के आधार पर समझाइये। Explain magnetic property of 3d series elements.
(d) 3d श्रेणी के तत्वों के चुम्बकीय गुणों को समझाइये।
(e)
Explain Lanthanide contraction. लेन्थेनाइड संकुचन समझाइये।
(f) Derive Nernst equation for single electrode potential. एकल इलेक्ट्रोड विभव के लिए नर्न्स्ट समीकरण की व्युत्पत्ति कीजिए。
Q3.
3. Heisenberg uncertainty principle
(i)
(ii) Quantum Numbers मैक्सवेल के आणविक वेगों के वितरण नियम की विवेचना कीजिए। तीनों प्रकार के आणविक वेग किस प्रकार एक-दूसरे से सम्बन्धित हैं ?
Q4. 4. Write short notes on the following : (a) [Incomplete OCR content from page 2; if available, include here]
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Frequently asked questions
What is the subject and its examination year?
Chemistry, Haryana HCS (Ex-Br.) Mains, 2017.
What is the paper code?
Code 1042.
How many questions must be attempted?
Five questions in total; Question 1 is compulsory; two from Part-I and two from Part-II.
Which questions are compulsory?
Question 1 is compulsory.
What languages are used in the exam?
Bilingual: English and Hindi.
What topics are covered in Q1?
Short notes on Stoichiometric defects, Semiconductors, Lattice energy, Fajan's rule, Claisen condensation, Conducting polymers, Quantum yield, Law of mass action.