1st Test – 3rd Batch Mock Test SeriesBy abdulslambsn@gmail.com / July 23, 2025 1st Test - 3rd Batch Mock Test Series Your Good Name: Your City: Email: 1. One Mole Of An Ideal Gas At Stp Occupies 22.4 L. What Volume Would 0.25 Mol Occupy At The Same Conditions? 5.6 L 11.2 L 8.4 L 44.8 L None 2. A Gas Has A Density Of 1.429 G/L At Stp. Identify The Gas: He Ne N₂ O₂ None 3. The Empirical Formula Of A Compound Containing 40 % C, 6.7 % H, And 53.3 % O Is: Ch₂O C₂Ho CH₂O C₂H₂O₂ None 4. Calculate Molecular Weight If Empirical Weight Is 30 And Vapour Density Is 15: 30 60 15 45 None 5. Which Exhibits Allotropy? So₂ Carbon Nacl Caco₃ None 6. In Chemical Equilibrium, When Temperature Increases For Endothermic Reaction: Equilibrium Shifts Left Shifts Right No Shift Reaction Stops None 7. Ionization Energy Generally: Decreases Down A Group, Increases Across Period Increases Across Period, Decreases Down A Group Opposite No Trend None 8. A Buffer Solution Resists Ph Change; Which Component Pair Best Describes Acid‑Base Buffer? Hcl/Cl⁻ Nh₄⁺/Nh₃ Ch₃Cooh/C₂H₅Oh Naoh/Nacl None 9. For Reaction A + B ↔ C + Heat, Increasing Pressure: Shifts Right Shifts Left No Change (Equal Gas Volumes) Equilibrium Destroyed None 10. A Gas With Real Behavior Deviates Due To: Molecular Size & Intermolecular Forces Low Pressure High Temperature None None 11. Ph Of 1×10⁻⁵ M Hcl: 5 6 4.996 5.3 None 12. Gibbs Free Energy Becomes Negative When: ΔH Positive, ΔS Negative ΔH Negative, ΔS Positive Both Favorable Always Positive None 13. In Redox Reaction Fe²⁺ → Fe³⁺ + E⁻, Fe²⁺ Acts As: Oxidizing Agent Reducing Agent Oxide Both None 14. If Ionic Product Exceeds Ksp, Then: Precipitation Occurs Solution Is Supersaturated Saturated Dilute None 15. Rate Of First‑Order Reaction Depends On: [A]² K[A] Ln [A] None None 16. ΔE For Ideal Gas Equals: Q – W ΔH – PΔV Q + W ΔH + W None 17. Quantum Number Combinations Giving Same Orbital Set: N + L Variant N + L Same, N Higher Has Greater Energy N Same L Higher Energy Always Distinct None 18. In Conjugated Dienes, 1,2‑ Vs 1,4‑Addition Ratio Depends On: Temperature Kinetics/Thermodynamics Both Just Catalysts None 19. Which Structure Enables Horizontal Gene Transfer But Not Motility? Pili Flagella Fimbriae Mesosome None 20. A Bacterium With Only One Polar Flagellum Is: Peritrichous Lophotrichous Monotrichous Amphitrichous None 21. The Glycocalyx Layer Composed Of Extracellular Polysaccharides Is Essential For: Binary Fission Biofilm Formation & Protection Atp Synthesis Genetic Exchange None 22. Pplo (Mycoplasma) Lacks: Ribosomes Nucleoid Cell Wall Plasma Membrane None 23. Gram-Negative Traits Include: Thick Peptidoglycan Periplasmic Space Outer Membrane With Lps Teichoic Acids None 24. Chromatophores In Cyanobacteria Indicate: Heterotrophy Lipid Storage Photosynthetic Pigmentation Waste Removal None 25. Mesosomes May Assist In: Cell Movement Dna Replication Cell Division Protein Synthesis None 26. Prokaryotic Ribosome Size: 80S = 60S+40S 70S = 50S+30S 60S+20S 40S+20S None 27. Gas Vacuoles Are: Membrane-Bound Proteinaceous Inclusion Bodies Lipid Storage Absent In Cyanobacteria None 28. Binary Fission Phases Include: Lag, Log, Death Log, Stationary, Dissolution Lag, Log, Stationary, Death Only Log & Death None 29. Nitrifying Bacteria Like Nitrosomonas Are: Chemoheterotrophs Photoautotrophs Chemoautotrophs Photoheterotrophs None 30. Archaea Differ Because They Have: Peptidoglycan Walls Ester Lipids Ether-Linked Membrane Lipids No Cell Membrane None 31. Thermophilic Bacteria Thrive At ~100 °C; Common Domain Is: Bacteria Protozoa Archaea Cyanobacteria None 32. Transduction Involves Dna Transfer Via: Pili Naked Dna Bacteriophage Cell Fusion None 33. Shape-Chain Arrangement: Streptococci Refers To: Grape-Like Clusters Pairs Chains Of Cocci Tetrads None 34. Cysts Differ From Spores In That Cysts Are: Heat Resistant Dormant But Not Highly Heat Resistant Used For Reproduction Always Reproductive None 35. An Example Of Microaerophilic Bacterium Is: Pseudomonas Campylobacter E.Coli Spirochete None 1 out of 4 Thanks For Submitting Your Quiz !!