Fundamental Principles of Organic ChemistryOctane Number and Knocking2741Choose the best answerPetrol having anti-knock behaviour equivalent to a mixture of 90% iso-octane and 10% n-heptane has an octane number of:A80B10C90D100 Like 0 Discuss 0Share
ElectrochemistryRules and Exceptions of Oxidation Number2742Choose the best answerWhat is the oxidation state of oxygen in KO₂?A−1/2B−2C−1D−3 Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Chemical Equilibrium#Kc2743Choose the best answerFor which equilibrium is Kc dimensionless?AC(s) + H₂O(g) ⇌ CO(g) + H₂(g)BCH₃OH(l) + CH₃CO₂H(l) ⇌ CH₃CO₂CH₃(l) + H₂O(l)CCu²⁺(aq) + 4NH₃(aq) ⇌ Cu(NH₃)₄²⁺(aq)DN₂O₄(g) ⇌ 2NO₂(g) Like 0 Discuss 0Share
SolidsDiffusion in Solids2744Choose the best answerSolids diffuse very slowly compared with liquids and gases mainly because:ATheir temperature is always highBTheir particles are closely packed and have restricted movementCTheir density is always lowDThey are highly compressible Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Aldehydes and Ketones#Carbonyl Compounds2745Choose the best answerQ.108 Acetophenone is an:AAliphatic ketonesBPhenolCCarboxylic acidDAromatic ketones Like 0 Discuss 0Share