UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Halogens#S- and P-Block Elements566Choose the best answerWhich oxyacid of halogen is strong oxidizing agent? (UHS MDCAT 2023)AHClO₄BHClO₃CHClODHClO₂ Like 1 Discuss 2Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Numbers567Choose the best answerCalculate the approximate wave number for the hydrogen transition n = 4 → n = 2.A1.09 × 10⁶ m⁻¹B2.06 × 10⁶ m⁻¹C8.46 × 10⁶ m⁻¹D3.28 × 10⁶ m⁻¹ Like 0 Discuss 0Share
GasesIsothermal Expansion568Choose the best answerDuring isothermal expansion of a fixed amount of an ideal gas: (1) Pressure decreases. (2) Average kinetic energy remains constant. (3) Average kinetic energy decreases. (4) Number of molecules increases.A(1) and (2)B(1), (2) and (4)C(1), (2) and (3)D(2) and (3) Like 0 Discuss 0Share
ElectrochemistryElectrolysis of Aqueous Solutions569Choose the best answerDuring electrolysis of aqueous KNO₃, H₂ is produced at the cathode instead of K because:AK⁺ has a more positive reduction potential than H⁺BPotassium is less reactive than hydrogenCReduction of water/H⁺ is easier than reduction of K⁺DPotassium is already in the elemental state Like 0 Discuss 0Share
Carboxylic AcidsReduction of Esters570Choose the best answerWhich compound produces two alcohol products on reduction with LiAlH₄?ACH₃COOCH₃BCH₃OC₂H₅CCH₃COCH₃DCH₃CHO Like 0 Discuss 0Share1