Chemistry of HydrocarbonsHalogenation of Benzene1296Choose the best answerIn the simplified electrophilic-substitution model, the attacking electrophile in chlorination is represented as:ACl⁺BCl⁻CCl₂⁻DHCl Like 1 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Atomic Structure#Quantum Numbers1297Choose the best answer"In an orbital of an atom, no two electrons can have the same set of four quantum numbers, at least one quantum number must be different." This statement is:AAufbau principleBPauli's exclusion principleCHund's ruleDWissewser rule Like 0 Discuss 0Share
Alcohols and PhenolsPreparation of Phenol from Benzenesulphonate1298Choose the best answerSodium benzenesulphonate on fusion with NaOH followed by acidification gives:APhenolBBenzoic acidCBenzeneDBenzaldehyde Like 0 Discuss 0Share
StoichiometryMole#Mole Concept1299Choose the best answerWhat is the formula mass of an ionic compound called when expressed in grams?AGram atomic massBMolecular massCRelative atomic massDGram formula mass Like 0 Discuss 0Share
Chemical EquilibriumEffect of Temperature on Equilibrium1300Choose the best answerFor the endothermic equilibrium N₂(g) + O₂(g) + heat ⇌ 2NO(g), a higher yield of NO is favoured by:AHigh temperatureBHigh pressureCLow temperatureDRemoving N₂ Like 0 Discuss 0Share