NCERT Class 12 Chemistry Chapter 3 Aldehydes, Ketones and Carboxylic Acids Test Mock Test
This free online test covers Chapter 3, Aldehydes, Ketones and Carboxylic Acids, from the NCERT Class 12 Chemistry-II textbook. The 30 questions are written directly from the chapter — definitions, processes, worked examples and the points the book italicises — so a score here tells you how much of the chapter actually stuck, not how well you guess. Each answer carries an explanation that says why the right option is right and why the other three fail, which is where most of the learning happens. Attempt it after your first read of the chapter, then again before the exam. There is no negative marking, and you can review the full solution the moment you submit.
Duration
30 mins
Questions
30 MCQs
Total Marks
30 pts
Negative
0 per wrong
Topics Covered in This Paper
Sample Questions
Q1.The carbonyl carbon of an aldehyde or ketone is sp2 hybridised, from which it follows that:
- AThe carbonyl carbon and the three atoms attached to it lie in one plane with bond angles of about 120 degrees
- BThe carbonyl carbon and its three attached atoms form a pyramid with bond angles of about 109 degrees
- CThe pi electron cloud lies in the same plane as the three sigma bonds
- DThe carbonyl carbon forms four sigma bonds and no pi bond
Q2.When an aldehyde group is attached directly to a ring, the IUPAC name is formed by:
- AAdding the suffix carbaldehyde after the full name of the cycloalkane, numbering from the carbon bearing the group
- BReplacing the final e of the cycloalkane name with al
- CAdding the suffix one after the full name of the cycloalkane
- DNaming the compound as a substituted alkanal with the ring as a substituent
Q3.Rosenmund reduction, used to prepare an aldehyde, consists of hydrogenating:
- AAn acyl chloride over palladium supported on barium sulphate
- BA primary alcohol over heated silver or copper
- CAn ester with diisobutylaluminium hydride
- DA nitrile with stannous chloride in the presence of hydrochloric acid
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Disclaimer: The questions provided here are extracted and digitized from previous year papers using automated processes. They may contain typographical errors, formatting issues, or minor variations from the actual examination paper. While we have done our best to verify the accuracy of the official answer keys, discrepancies may occasionally exist. Please refer to the official commission website for the most authentic paper.
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FAQ
Frequently asked questions
Frequently Asked Questions
- How many questions are in the NCERT Class 12 Chemistry Chapter 3 Aldehydes, Ketones and Carboxylic Acids Test mock test?
- This paper has 30 multiple-choice questions carrying 30 marks in total, to be attempted in 30 minutes.
- Is the NCERT Class 12 Chemistry Chapter 3 Aldehydes, Ketones and Carboxylic Acids Test mock test free to attempt?
- Yes. You can attempt the full paper online for free on AI Test Planet, and see your score and correct answers immediately after submitting.
- Does this paper have negative marking?
- No, there is no negative marking on this paper, so an attempted guess costs you nothing.
- Are solutions and explanations available?
- Yes. After you submit, every question shows the correct answer with a step-by-step explanation, along with a topic-wise breakdown of your performance.