Alkyl HalidesStructure and Reactivity of Grignard Reagents1206Choose the best answerThe carbon atom bonded to magnesium in a Grignard reagent behaves as:AElectrophilic carbonBNucleophilic carbonCNeutral carbonDPositively charged carbon Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Cell Potential#Electrochemistry1207Choose the best answerFor the cell A | A⁺(x M) || B⁺(y M) | B, the measured emf is +0.20 V. What is the overall cell reaction?AA⁺ + B → A + B⁺BA⁺ + e⁻ → A; B⁺ + e⁻ → BCA + B⁺ → A⁺ + BDThe cell reaction cannot be predicted Like 0 Discuss 0Share
Chemistry of HydrocarbonsOrientation in Electrophilic Aromatic Substitution1208Choose the best answerWhich group is meta-directing?A–OHB–NH₂C–NO₂D–OCH₃ Like 0 Discuss 0Share
Fundamental Concepts of ChemistryPhysical Changes1209Choose the best answerWhich of the following is a physical change?ARusting of ironBSouring of milkCDigestion of foodDSublimation of camphor Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Penetrating Power#Radioactivity1210Choose the best answerWhich radioactive emission has the greatest penetrating power?Aα particlesBβ particlesCγ raysDPositive rays Like 0 Discuss 0Share