Chemical EquilibriumActive Mass2566Choose the best answerAccording to the active-mass concept, reaction rate is directly related to the:AEquilibrium constant onlyBAtomic masses of reactantsCVolume of the container onlyDActive masses of reactants Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryPolarimetry2567Choose the best answerWhich instrument is used to measure optical activity?ASpectrometerBPolarimeterCColorimeterDRefractometer Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Electrochemistry#Redox Reactions2568Choose the best answerWhich one of the following reactions involve either oxidation or reduction EXCEPT: (BUMHS MDCAT 2025)ACH₄ + 2O₂ → CO₂ + 2H₂OBCu²⁺ + Zn → Zn²⁺ + CuCCuO + H₂SO₄ → CuSO₄ + H₂ODZn + H₂SO₄ → ZnSO₄ + H₂ Like 0 Discuss 0Share
StoichiometryGay-Lussac's Law of Combining Volumes2569Choose the best answerGas volumes at the same temperature and pressure react in simple whole-number ratios. This is:AProust's lawBAvogadro's lawCGay-Lussac's law of combining volumesDLaw of multiple proportions Like 0 Discuss 0Share
GasesBoyle's Law and Isothermal Process2570Choose the best answerAn ideal gas expands according to PV = constant. What happens to its temperature?AIt increasesBIt decreasesCIt remains constantDIt becomes zero Like 0 Discuss 0Share