LU B.Sc Sem 1 Chemistry Inorganic Chemistry-I Important Questions 2026 | PYQ Pattern
LU B.Sc 1st Semester Chemistry (Inorganic Chemistry-I) Important Questions 2026 – Lucknow University (LU) aur affiliated colleges ke B.Sc NEP Semester I (PCM & ZBC group) students ke liye Chemistry – Inorganic Chemistry-I ke sabse important questions, bilkul previous year question paper (PYQ) pattern me. Saare questions neeche page par hi hain – section-wise.
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Paper Details – B.Sc Sem 1 Chemistry (LU NEP 2026)
| University | University of Lucknow (LU) + affiliated colleges |
| Course | B.Sc. I Semester (NEP) – PCM & ZBC |
| Paper | Chemistry – Inorganic Chemistry-I |
| Time / Marks | 2 Hours / 75 Marks |
| Pattern | Kul 4 questions: Section A se 1 (15 marks) + Section B se 3 (20 marks each) |
Section A – Important Questions (15 Marks)
Note: Section A se koi ek question attempt karna hai.
Q1. (a) Calculate the effective nuclear charge felt by a valence electron in calcium (Z = 20) and in chlorine (Z = 17).
(b) Explain Pauli’s exclusion principle and use it to find the maximum number of electrons in s, p, d and f orbitals.
(c) Draw the MO diagram of the NO molecule. [15 Marks]
Q2. Write short notes on: (a) Born-Haber cycle (b) Diagonal relationship (c) Schottky and Frenkel defects [15 Marks]
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Section B – Important Questions (20 Marks)
Note: Section B se koi teen questions attempt karne hain.
Q3. Explain the VSEPR theory and use it to account for the shapes of NH₃, H₂O, ClF₃, SF₄ and I₃⁻. Why do H₃O⁺, CH₄ and H₂O have different bond angles though the central atom is sp³ hybridized in each? [20 Marks]
Q4. Draw the MO diagrams of O₂, O₂⁺ and N₂ and find their bond orders. Arrange O₂, O₂⁺, O₂⁻ and O₂²⁻ in increasing order of stability and bond length. Explain why O₂ is paramagnetic. [20 Marks]
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Q5. Discuss the preparation, structure and bonding of diborane (B₂H₆). Why is borazine called inorganic benzene? [20 Marks]
Q6. Discuss the preparation, properties and structures of XeF₂, XeF₄ and XeF₆. Using hybridisation, give the structures of XeO₃ and XeOF₄. [20 Marks]
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Q7. (a) State Fajan’s rule. How does it influence covalent character in ionic bonds?
(b) Using the Hannay-Smith equation, find the percentage ionic character of gaseous HF (x_H = 2.1; x_F = 4.0). [20 Marks]
Q8. Define electron affinity and electronegativity. Which factors influence them, and how do they vary in the periodic table? [20 Marks]
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Q9. (a) Discuss interhalogen compounds and polyhalide ions.
(b) Give the structures of H₃PO₂, H₄P₂O₆ and H₂S₂O₇. [20 Marks]
Q10. Write short notes on: (a) Silicates and their classification (b) Inert pair effect (c) Radius ratio rule (d) Fullerenes [20 Marks]
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Exam Tips – Chemistry (Inorganic Chemistry-I)
- Section A ke long answers ke short notes bana lo – 15 marks pakke karo.
- Section B ke derivations / numericals / diagrams ki practice karo.
- Upar ke questions ko 2 ghante me PYQ ki tarah solve karke dekho.
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FAQs
LU B.Sc 1st Semester Chemistry (Inorganic Chemistry-I) exam me kitne questions attempt karne hote hain?
Ye 75 marks ka 2 ghante ka paper hai. Kul 4 questions attempt karne hote hain – Section A se 1 question (15 marks) aur Section B se 3 questions (20-20 marks).
Kya ye LU B.Sc Sem 1 Chemistry ka official previous year question paper (PYQ) hai?
Nahi. Ye LUUPDATE team ka banaya 2026 exam ke liye most important questions ka set hai, jo Lucknow University ke previous year papers ke pattern aur NEP syllabus par based hai.
B.Sc Sem 1 Chemistry Inorganic Chemistry-I ke answers / solutions kahan milenge?
LUUPDATE ke Most Important Questions course (BA, B.Sc, B.Com Sem I, III & V) me har question ka pura solution milta hai – sirf ₹99 me, LUUPDATE App par.
Ye paper kis group ke liye hai – PCM ya ZBC?
Chemistry (Inorganic Chemistry-I) LU B.Sc NEP Semester I ke PCM & ZBC group ke students ke liye hai.
Disclaimer: Ye LUUPDATE team dwara taiyar kiye gaye expected important questions hain (previous year pattern par), Lucknow University ka official question paper nahi. Exam pattern aur syllabus ke liye university ka official notice zaroor dekhein.
