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Chapters
2: Solutions
3: Ionic Equilibria
4: Chemical Thermodynamics
5: Electrochemistry
6: Chemical Kinetics
7: Elements of Groups 16, 17 and 18
8: Transition and Inner transition Elements
9: Coordination Compounds
10: Halogen Derivatives
11: Alcohols, Phenols and Ethers
▶ 12: Aldehydes, Ketones and Carboxylic acids
13: Amines
14: Biomolecules
15: Introduction to Polymer Chemistry
16: Green Chemistry and Nanochemistry
![SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC chapter 12 - Aldehydes, Ketones and Carboxylic acids - Shaalaa.com](/images/chemistry-english-12-standard-hsc_6:5f2b1b2038084cf381bfa42c826a928c.jpg "SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC chapter 12 - Aldehydes, Ketones and Carboxylic acids")
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Solutions for Chapter 12: Aldehydes, Ketones and Carboxylic acids
Below listed, you can find solutions for Chapter 12 of Maharashtra State Board SCERT Maharashtra for Chemistry [English] 12 Standard HSC.
SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC 12 Aldehydes, Ketones and Carboxylic acids Multiple choice questions
1 Mark
Which of the following is the product of reaction of ethane nitrile with Grignard reagent followed by acid hydrolysis?
a ketone
an aldehyde
an acid
an acid chloride
_____________ reaction is used to synthesize straight alkyl substituted benzenes.
Etard
Rosenmund reduction
Stephen reaction
Wolf Kishner reduction
Ketones CANNOT be converted into carboxylic acid using _____________
Alkaline KMnO4
CrO3
dil. HNO3
hot and conc. HNO3
Correct order of acid strength for
- acetic acid
- fluoroacetic acid
- 4-Nitrobenzoic acid
- 4-Methyl benzoic acid is ______.
i > ii > iii > iv
ii > iii > iv > i
iii > iv > i > ii
iv > i > ii > iii
Addition of sodium bisulphite to ethanol is ____________ type of reaction.
electrophilic addition
electrophilic substitution
nucleophilic addition
nucleophilic substitution
The following reactants CANNOT be converted into carboxylic acid?
Dry ice
Cyclohexane
Toluene
Cyclohexene
The following compounds will give positive Fehling’s test.
Propanone
Pentan-3-one
Butanone
Butanal
SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC 12 Aldehydes, Ketones and Carboxylic acids Very Short Answer Questions
1 mark
Write IUPAC name of Phthaldehyde?
What is substituted imine called?
Write the name of the product when ketones react with 1,2-diol in presence of dry HCl.
Write another name of disproportionation reaction?
Write the number of products when a mixture of ethanal and propanal is reacted with dilute alkali?
Write the structure of the product formed when carboxylic acid is heated with a dehydrating agent like P2O5
Write the reducing agent which CANNOT reduce –COOH group.
SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC 12 Aldehydes, Ketones and Carboxylic acids Short answer questions (Type-I)
2 Marks
Write a classification of aliphatic ketones with a suitable example.
What is the action of Grignard reagent on benzonitrile?
Carboxylic acids have higher boiling points than those of ethers. Give reason.
Describe the following:
Cannizzaro reaction
What is the action of following on proponal?
Hydroxyl amine
What is the action of following on proponal?
Hydrazine
Write the preparation reactions for acid amide from the following.
Carboxylic acid
Write the preparation reactions for acid amide from the following.
Acid chloride
SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC 12 Aldehydes, Ketones and Carboxylic acids Short answer questions (Type-II)
3 marks
What is the action of following reagents on ethanoic acid?
SOCl2/heat
What is the action of following reagents on ethanoic acid?
sodalime/heat
What is the action of following reagents on ethanoic acid?
P2O5/heat
Explain aldol condensation reaction in detail.
Write a reaction for the following conversion.
Benzene to Benzaldehyde.
Write reactions for the following conversions.
Propanone to Propane
Write reactions for the following conversions.
4-Nitrobenzoic acid to Nitrobenzene
Explain haloform reaction with suitable example.
Write a reaction to distinguish acetaldehyde from acetone.
Write the IUPAC name of mesityl oxide.
What is the action of the following regent on propanal?
Sodium Bisulphite
What is the action of following reagents on acetaldehyde?
Acidified potassium dichromate
Write chemical reactions to convert –COOH group of acetic acid into the following.
CH4
Write chemical reactions to convert –COOH group of acetic acid into the following.
C2H5OH
Write chemical reactions to convert –COOH group of acetic acid into the following.
CH3COCl
SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC 12 Aldehydes, Ketones and Carboxylic acids Long answer questions
4 marks
Draw structure of salicylaldehyde.
Write reaction for preparation of acetophenone from benzoyl chloride.
Explain the acidic nature of carboxylic acids.
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Ethane-1,2-diol in presence of dry HCl.
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Tollen’s reagent
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Phenyl hydrazine
Write reagent for conversion of alkyl nitrile into aldehyde.
What are aliphatic aldehydes?
Complete the following sequence of reactions and write structures for A, B, C.
\[\ce{Dry ice ->[i. Dry ether][ii. Hydrolysis] A ->[PCl5] B ->[H2(gas)][Pd - BaSO4] C}\]
Solutions for 12: Aldehydes, Ketones and Carboxylic acids
SCERT Maharashtra solutions for Chemistry [English] 12 Standard HSC chapter 12 - Aldehydes, Ketones and Carboxylic acids
Shaalaa.com has the Maharashtra State Board Mathematics Chemistry [English] 12 Standard HSC Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. SCERT Maharashtra solutions for Mathematics Chemistry [English] 12 Standard HSC Maharashtra State Board 12 (Aldehydes, Ketones and Carboxylic acids) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Chemistry [English] 12 Standard HSC chapter 12 Aldehydes, Ketones and Carboxylic acids are Overview: Aldehydes, Ketones and Carboxylic Acids, Overview of Aldehydes, Ketones and Carboxylic Acids, Classification of Aldehydes, Ketones and Carboxylic Acids, Nomenclature of Aldehydes, Ketones and Carboxylic Acids, Preparation of Aldehydes and Ketones, Physical Properties, Polarity of Carbonyl Group, Chemical Properties of Aldehydes and Ketones, Chemical Properties of Carboxylic Acids, Concepts of Aldehydes, Ketones, and Carboxylic Acids, Chemical Reactions of Aldehydes and Ketones - Reactions Due to α-hydrogen, Methods of Preparation of Carboxylic Acids.
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