Chemistry of HydrocarbonsDirective Influence of Substituents1186Choose the best answerWhich group is NOT ortho-para directing?A–NH₂B–OHC–XD–CHO Like 3 Discuss 0Share
Chemistry of HydrocarbonsOxidation of Alkenes with KMnO₄1187Choose the best answerAn alkene treated with cold, dilute alkaline KMnO₄ gives mainly:AA vicinal diolBAn alkaneCAn alkyl halideDAn aldehyde Like 2 Discuss 0Share
Chemistry of HydrocarbonsFriedel–Crafts Acylation1188Choose the best answerThe electrophile in Friedel–Crafts acylation is:ARCO⁺BR⁻CCl⁻DOH⁻ Like 2 Discuss 0Share
Atomic StructureAufbau Principle1189Choose the best answerAfter the 3d subshell becomes completely filled during the Aufbau sequence, the next electron enters:A4pB4fC4sD4d Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryFunctional Groups1190Choose the best answerWhich matching of functional groups with their classes is correct? (1) –CHO (2) –COOH (3) –COOR (4) –CONH₂A1–Aldehyde, 2–Carboxylic acid, 3–Ester, 4–AmideB1–Carboxylic acid, 2–Ester, 3–Aldehyde, 4–AmideC1–Aldehyde, 2–Ester, 3–Amide, 4–Carboxylic acidD1–Amide, 2–Aldehyde, 3–Ester, 4–Carboxylic acid Like 0 Discuss 0Share