Sindh MDCAT 2021 Chemistry#Atomic Structure#Isoelectronic Species3126Choose the best answerHydride ion and Helium atom have the same:ANumber of protonsBNumber of neutronsCValencyDNumber of electrons Like 0 Discuss 0Share
Chemical EquilibriumEffect of Pressure on Equilibrium3127Choose the best answerIn which equilibrium does increasing pressure increase the equilibrium yield of products?AH₂(g) + I₂(g) ⇌ 2HI(g)BH₂O(g) + CO(g) ⇌ CO₂(g) + H₂(g)CH₂O(g) + C(s) ⇌ CO(g) + H₂(g)DCO(g) + 3H₂(g) ⇌ CH₄(g) + H₂O(g) Like 0 Discuss 0Share
Aldehydes and KetonesReactivity of Methanal3128Choose the best answerMethanal is exceptionally reactive toward nucleophilic addition because:AIt lacks an α-hydrogen atom.BIt has no steric hindrance from alkyl groups and no +I effect.CIt is highly resonance-stabilized.DIts carbonyl bond is less polar. Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and VSEPR Theory3129Choose the best answerThe molecular shape of SnCl₂ is:ALinearBBentCTetrahedralDTrigonal planar Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Macromolecules#Polymers3130Choose the best answerWhich monomer forms PVC by addition polymerization?AEtheneBPropeneCVinyl chlorideDVinyl acetate Like 0 Discuss 0Share