NEET UG – Chemistry Practice Paper (Previous Years’ Questions) Part 4 | Topic: Miscellaneous
Total Questions: 30 | Total Marks: 120 Q1. Which thermodynamic parameter predicts spontaneity of a reaction? ΔH ΔS ΔG Heat Negative Gibbs free energy indicates spontaneity. Q2. Which orbital has maximum penetration power? s p d f s-orbitals penetrate closest to nucleus. Q3. Which of the following is an extensive property? Temperature Pressure Density Volume Volume depends on amount of substance. Q4. Which species is diamagnetic? O₂ NO N₂ NO₂ All electrons in N₂ are paired. Q5. Which solution will show maximum lowering of vapour pressure? 0.1M glucose 0.1M urea 0.1M NaCl 0.1M CaCl₂ CaCl₂ gives maximum number of particles. Q6. Which element shows maximum atomic radius? Na K Rb Cs Atomic size increases down the group. Q7. Which gas deviates least from ideal behavior? NH₃ CO₂ He SO₂ Helium has negligible intermolecular forces. Q8. Which compound shows strongest hydrogen bonding? NH₃ H₂O HF CH₃OH Water forms extensive hydrogen-bonded network. Q9. Which compound undergoes SN1 reaction most easily? CH₃Cl C₂H₅Cl (CH₃)₃CCl C₆H₅Cl Tertiary carbocation is most stable. Q10. Which reaction shows zero-order kinetics? Radioactive decay Photochemical reaction Ester hydrolysis SN2 reaction Rate depends only on light intensity. Q11. Which metal is strongest reducing agent in aqueous solution? Na K Li Cs Highest hydration energy of Li⁺. Q12. Which compound shows resonance stabilization? Ethane Ethene Benzene Propane π-electron delocalization in benzene. Q13. Which salt undergoes hydrolysis? NaCl KNO₃ NH₄Cl Na₂SO₄ Salt of weak base and strong acid. Q14. Which metal is extracted by leaching? Iron Aluminium Gold Zinc Gold extraction uses cyanide leaching. Q15. Which compound acts as local anesthetic? Chloroform Ether Lidocaine Aspirin Lidocaine is a local anesthetic. Q16. Which compound has highest boiling point? CH₄ NH₃ H₂O HF Strong hydrogen bonding in water. Q17. Which element has highest electron affinity? F Cl Br I Chlorine has highest electron affinity. Q18. Which compound gives iodoform test? Ethanol Methanol Propanol Phenol Ethanol forms CH₃CO– group on oxidation. Q19. Which oxide is amphoteric? Na₂O MgO Al₂O₃ SO₃ Al₂O₃ reacts with acids and bases. Q20. Which gas is known as producer gas? CO + H₂ CO + N₂ CH₄ + H₂ CO₂ + N₂ Producer gas = CO + N₂. Q21. Which compound has linear geometry? CO₂ SO₂ NH₃ H₂O CO₂ is linear. Q22. Which process decreases entropy? Melting Vaporisation Condensation Dissolution Gas to liquid reduces disorder. Q23. Which electrolyte has highest molar conductivity at infinite dilution? NaCl HCl CH₃COOH NH₄OH H⁺ has very high ionic mobility. Q24. Which compound is used as antacid? NaOH Mg(OH)₂ HCl NH₄OH Milk of magnesia neutralizes excess acid. Q25. Which compound shows optical isomerism? 2-bromopropane 2-butanol Ethanol Propane Has chiral carbon atom. Q26. Which compound is strongest oxidising agent? KMnO₄ K₂Cr₂O₇ H₂O₂ O₃ Ozone is a very strong oxidising agent. Q27. Which metal is liquid near room temperature? Cs Ga Hg All of these Cs, Ga, and Hg melt near room temperature. Q28. Which compound causes temporary hardness of water? CaCl₂ MgSO₄ Ca(HCO₃)₂ Na₂CO₃ Bicarbonates cause temporary hardness. Q29. Which polymer is used for non-stick cookware? PVC Bakelite Teflon Nylon Teflon is chemically inert and non-stick. Q30. Which process leads to maximum increase in entropy? Solid → Liquid Liquid → Gas Solid → Gas Gas → Liquid Solid to gas shows maximum disorder. Submit Paper Conclusion: Why Part 5 Practice Strengthens NEET Chemistry Performance NEET UG Chemistry Practice Paper – Part 5 (Miscellaneous) is designed to push students one step closer to real NEET readiness by reinforcing concept integration, accuracy, and exam confidence. By the time aspirants reach Part 5, the goal is no longer just understanding concepts—but mastering their application under mixed and unpredictable conditions, exactly as required in the actual NEET examination. The greatest strength of Part 5 lies in its advanced consolidation approach. The questions compel students to recall ideas from Physical, Organic, and Inorganic Chemistry simultaneously, encouraging them to connect concepts rather than treat chapters as isolated units. This integrated practice significantly improves concept retention, which is crucial during long exams when mental fatigue can cause even well-prepared students to make mistakes. Part 5 also focuses heavily on high-yield NEET themes such as thermodynamics, chemical equilibrium, colligative properties, electrochemistry, bonding trends, reaction mechanisms, stereochemistry, environmental chemistry, and real-life chemical applications. These areas consistently appear in NEET, and repeated exposure through well-structured questions ensures students are prepared for both direct and twisted versions of such problems. Another key benefit of solving Part 5 is the development of decision-making speed. NEET Chemistry often provides options that are closely related, where hesitation can cost valuable seconds. Practicing these questions helps students learn how to identify the key concept quickly, eliminate incorrect options confidently, and arrive at the correct answer without overthinking. The inclusion of clear explanations after each question transforms mistakes into learning opportunities. Instead of simply knowing whether an answer is right or wrong, students understand why it is so. This prevents the repetition of conceptual errors and strengthens long-term understanding—an essential requirement for consistent scoring across multiple mock tests and the final exam. Part 5 also plays a critical role in building exam temperament. Attempting a full 30-question mixed set in one sitting improves focus, stamina, and mental discipline. Students become comfortable handling pressure, managing time effectively, and maintaining accuracy even in the later stages of a practice session—skills that directly translate to better performance on NEET exam day. In essence, Part 5 serves as a bridge between practice and performance. It sharpens conceptual clarity, enhances speed and accuracy, reinforces high-frequency NEET topics, and builds the confidence needed to tackle Chemistry as a scoring subject. For students aiming for top ranks, consistent practice with Part 5 ensures they are not just prepared—but exam-ready.









