Carbonyl Compounds and Carboxylic Acids Additional Practice Test

12th Standard Chemistry — Carbonyl Compounds and Carboxylic Acids: Additional Online Practice Test

Pick how many questions you want and set a time limit, then start. You'll get your score at the end with the correct answer and an explanation for every question. Free, in Tamil and English — 15 questions available.

Set up your test

Number of questions

Time limit

Time remaining00:00

What is the IUPAC name for the compound commonly known as mesityl oxide?

A.4-methylpent-3-en-2-one B.2-methylpent-2-en-4-one C.4-methylpent-2-en-3-one D.3-methylpent-3-en-2-one

In a carbonyl group, the carbon atom uses which of the following hybridisations to form its sigma bonds?

A.sp B.\(sp^{2}\) C.\(sp^{3}\) D.\(dsp^{2}\)

Which of the following reagents is specifically used to oxidize a primary alcohol to an aldehyde while preventing further oxidation to a carboxylic acid?

A.Acidified \(K_{2}Cr_{2}O_{7}\) B.Alkaline \(KMnO_{4}\) C.Pyridinium chlorochromate (PCC) D.Hot concentrated \(HNO_{3}\)

The dry distillation of which of the following calcium salts produces propanone (acetone)?

A.Calcium formate B.Calcium acetate C.Calcium propionate D.Calcium benzoate

Aldehydes and ketones have significantly higher boiling points than non-polar hydrocarbons of similar molar mass primarily due to:

A.Strong covalent bonding B.Intermolecular hydrogen bonding C.Weak dipole-dipole interactions D.Vigorous van der Waals forces

What is the final organic product obtained when a cyanohydrin undergoes complete acid hydrolysis?

A.An \(\alpha\)-hydroxy acid B.An \(\alpha\)-amino acid C.A primary amine D.An aliphatic nitrile

According to Popoff's rule, during the vigorous oxidation of an unsymmetrical ketone, which part of the molecule is favored to retain the carbonyl group?

A.The larger alkyl group B.The smaller alkyl group C.The group with the least hydrogens D.The group with branching

In the mechanism of aldol condensation of acetaldehyde, what is the specific role of the dilute NaOH base in the first step?

A.To protonate the carbonyl oxygen B.To act as a nucleophile attacking the carbon C.To remove an \(\alpha\)-hydrogen atom as a proton D.To dehydrate the final aldol product

Which of the following aromatic aldehydes undergoes the Cannizzaro reaction when treated with concentrated alkali?

A.Acetaldehyde B.Benzaldehyde C.Propanal D.Phenylacetaldehyde

Q10

What is the correct IUPAC name for the dicarboxylic acid commonly known as succinic acid?

A.Ethane-1,2-dioic acid B.Propane-1,3-dioic acid C.Butane-1,4-dioic acid D.Pentane-1,5-dioic acid

Q11

The reaction of a Grignard reagent with dry ice followed by acid hydrolysis is used to synthesize which class of compounds?

A.Ketones B.Carboxylic acids C.Primary alcohols D.Acid anhydrides

Q12

The Hell-Volhard-Zelinsky (HVZ) reaction is specifically used to introduce which substituent into a carboxylic acid?

A.A hydroxyl group at the \(\beta\)-position B.A halogen atom at the \(\alpha\)-position C.An amino group at the terminal position D.An alkyl group into the benzene ring

Q13

Which of the following substituted acetic acids is the most acidic?

A.Fluoroacetic acid B.Chloroacetic acid C.Bromoacetic acid D.Iodoacetic acid

Q14

What is the correct decreasing order of reactivity of carboxylic acid derivatives towards nucleophilic acyl substitution?

A.Acid halide > Acid anhydride > Ester > Amide B.Amide > Ester > Acid anhydride > Acid halide C.Acid halide > Ester > Acid anhydride > Amide D.Acid anhydride > Acid halide > Amide > Ester

Q15

Which named reaction involves the self-condensation of an ester containing at least one \(\alpha\)-hydrogen in the presence of a strong base to form a \(\beta\)-keto ester?

A.Aldol condensation B.Perkin's reaction C.Claisen condensation D.Kolbe's reaction

More for this chapter

About this Carbonyl Compounds and Carboxylic Acids test

This free online practice test covers Carbonyl Compounds and Carboxylic Acids from the 12th Standard Chemistry (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

More chapters in Chemistry

View all