SZABMU MDCAT 2025 Chemistry#Alkynes#Chemistry of Hydrocarbons56Choose the best answerWhich of the following reagent is commonly used to prepare alkyne form vicinal dihalide? (SZABMU MDCAT 2025)AH₂ and catalystBKOH/NaNH₂CKMnO₄DLiAlH₄ Like 0 Discuss 0Share
ElectrochemistryRules and Exceptions of Oxidation Number57Choose the best answerThe oxidation state of oxygen in KO₂ is:A−1/2B−2C−1D−3 Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Alcohols#Alcohols and Phenols58Choose the best answerDehydration of alcohol gives which of the following product in the presence of H₂SO₄ at 140°? (UHS MDCAT 2023)AAcetaldehydeBDiethyl etherCEthyl acetateDEthyl chloride Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemical Equilibrium#Solubility Product59Choose the best answerQ.112 The solubility product Ksp predicts whether:ADiffusionBSolubilityCPrecipitation will take place or notDBoiling point Like 0 Discuss 0Share
StoichiometryPercentage Yield60Choose the best answerWhat is the correct formula for percentage yield?A(Actual yield / Theoretical yield) × 100B(Theoretical yield / Actual yield) × 100C(Actual yield × Theoretical yield) × 100D(Actual yield + Theoretical yield) / 100 Like 1 Discuss 0Share