Flashcards: CBSE Organic Chemistry Reactions — 44 cards

What is the primary purpose of the handbook for CBSE Class 12 Chemistry?

It is for last-minute revision focusing on chemical reactions and related topics.

Which topics must the handbook prioritize for CBSE Class 12 Chemistry revision?

Chemical reactions, preparation methods, named reactions, tests, conversions, reagents, conditions, products, explanations, and exceptions.

At what academic level must the handbook material remain?

CBSE Class 12 and NCERT level.

What types of questions should the handbook focus on for CBSE Class 12 Chemistry?

Direct reaction questions, product prediction, reagent identification, reaction identification, conversions, distinguishing tests, and assertion-reasoning questions.

What elements must every important reaction include in the handbook?

Its name, general equation, actual example, reagent or condition, short explanation, and exam-focused key point.

What formula style must aliphatic compounds use?

Condensed structural formulas with proper subscripts.

Which functional groups must be clearly visible in aliphatic compound formulas?

–OH, –CHO, –COOH, –CO–, –X, and –O– groups.

How must numerical indices appear in chemical formulas?

As proper subscripts.

Give an example of a chemical formula with proper subscript formatting.

CH₃CH₂OH.

What must every reaction involving an aromatic compound show?

A recognizable benzene ring with attached substituents.

How should ortho, meta, or para positions be shown in aromatic compound reactions?

They must be visually clear when relevant.

From which compounds are haloalkanes and haloarenes prepared?

From alcohols and hydrocarbons.

Which named reactions are required in the haloalkanes and haloarenes chapter?

Finkelstein, Swarts, Wurtz, Fittig, and Wurtz–Fittig reactions.

Which types of nucleophilic substitution examples must the chapter include?

SN1- and SN2-related examples.

What types of haloalkanes must be covered in the chapter?

Primary, secondary, and tertiary haloalkanes.

Which reaction involves dehydrohalogenation with alcoholic KOH?

Dehydrohalogenation of haloalkanes.

What product formation is important in dehydrohalogenation?

Saytzeff product formation.

Which reactions of chlorobenzene must be included?

Nucleophilic substitution of aryl halides and electrophilic substitution.

What directing behaviour do halogens show in chlorobenzene electrophilic substitution?

Ortho/para-directing behaviour.

From which compounds can alcohols be prepared?

Alkenes, haloalkanes, and carbonyl compounds.

Which reagents react with alcohols in key reactions?

Sodium, HX, PCl₃, PCl₅, and SOCl₂.

What types of reactions do alcohols undergo besides reagent reactions?

Dehydration, oxidation, alkene formation, and conversion to aldehydes, ketones, or acids.

Which reagents react with phenols in important reactions?

NaOH, bromine, nitric acid, and sulfuric acid.

Name two named reactions involving phenols.

Kolbe reaction and Reimer–Tiemann reaction.

What synthesis method is key for preparing ethers?

Williamson ether synthesis.

How can ethers be cleaved chemically?

By cleavage with HI or HBr.

What electrophilic substitution reactions are shown for anisole?

Electrophilic substitution reactions on the benzene ring of anisole.

Which reactions are essential for aldehyde preparation in NCERT?

Rosenmund reduction, Stephen reaction, Etard reaction, and Gattermann–Koch reaction.

What methods are important for ketone preparation in NCERT?

Oxidation, reduction, and Friedel–Crafts acylation methods.

Which nucleophilic addition reactions must be revised for aldehydes and ketones?

Reactions with HCN and NaHSO₃.

What reactions with aldehydes and ketones involve alcohols and ammonia derivatives?

Reactions forming hemiacetals, acetals, and imines.

Which reductions and oxidations must be revised for aldehydes and ketones?

Oxidation to acids and reduction to alcohols.

Which reductions are included in the chapter for carbonyl compounds?

Clemmensen reduction and Wolff–Kishner reduction.

What key reactions of carboxylic acids are included in the chapter?

Esterification, decarboxylation, reduction, and HVZ reaction.

Which condensation and haloform reactions are covered in the chapter?

Aldol condensation and haloform (iodoform) reaction.

Which tests must the organic-tests section include?

Tollens', Fehling's, iodoform, 2,4-DNP, and sodium bicarbonate tests.

What does the sodium bicarbonate test detect in organic compounds?

Carboxylic acids.

What must every organic test state?

Substance tested, reagent, chemical equation, observation, and identity established.

How must important organic conversions be displayed?

As a sequence from starting compound through reagents, intermediates, and final product without skipping intermediates.

Which conversions are collected in the important-conversions section?

Conversions from haloalkanes, haloarenes, alcohols, phenols, ethers, aldehydes, ketones, and carboxylic acids.

Which named reactions must the quick-revision section include?

Finkelstein, Swarts, Wurtz, Fittig, Wurtz–Fittig, Williamson ether synthesis, Kolbe, Reimer–Tiemann, Rosenmund, Stephen, Etard, Gattermann–Koch, Friedel–Crafts acylation, Clemmensen, Wolff–Kishner, aldol condensation, Cannizzaro, and HVZ reactions.

What must the reagents-at-a-glance table contain for rapid revision?

Reaction, reagent, condition, and main product or result.

What must the final quality check verify in a visual design?

Reactants, products, reagents, conditions, catalysts, temperatures, formulas, functional groups, aromatic positions, named reactions, tests, conversions, completeness, duplication, page breaks, and readability.

What elements must a booklet use for clear visual design?

Chapter dividers, clear headings, large reaction equations, consistent typography, tables, reagent or condition boxes, remember boxes, page numbers, a table of contents, and sufficient white space.