Aldehydes, Ketones and Carboxylic Acids — practice questions
109 curated practice questions from Aldehydes, Ketones and Carboxylic Acids (Chemistry Class 12, CBSE) — 104 easy, 2 medium, 3 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) C = O LiAlH _ 4 (i) (B) V_ C…
- The correct structure representation of carboxylate ion is
- Which of the following aldehydes will show Cannizzaro reaction?
- The addition of HCN to carbonyl compounds is an example of
- Which of the following structures is not correctly matched?
- What is the product formed on reaction of benzaldehyde with conc. KOH solution?
- Which one of the following reducing agents is likely to be the most effective in bringing about the following change?
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…
- Alkene ( X ) (C 5 H 10 ) on ozonolysis gives a mixture of two compounds ( Y ) and ( Z ). Compound ( Y ) gives positive…
- Conversion of ethyl alcohol into acetaldehyde is an example of
- Compound ( X ) with molecular formula C 3 H 8 O is treated with acidified potassium dichromate to form a product ( Y )…
- Which of the following compounds does not react with NaHSO 3 ?
- Which of the following will not undergo HVZ reaction?
- An organic compound ( X ) with molecular formula C 3 H 6 O is not readily oxidised. On reduction it gives C 3 H 8 O ( Y…
- What happens when a carboxylic acid is treated with lithium aluminium hydride?
- What would be the reactant and reagent used to obtain 2,4-dimethylpentan-3-ol?
- One mole of ethyl acetate on treatment with an excess of LiAlH 4 in dry ether and subsequent acidification produces
- A compound ( X ) having molecular formula C 4 H 8 O 2 is hydrolysed by water in presence of an acid to give a…
- Match the reagents in column I with products formed by reactions with acetone in column II and mark the appropriate…
- Identify the compounds ( X ), ( Y ) and ( Z) in the following reaction: CH _ 3 Br Mg / ther X [ (ii) water ] (i) CO _ 2…
- a -Hydroxypropanoic acid can be prepared from ethanal by following the steps given in the sequence.
- The structure of product X in the following reaction is
- What are the correct steps to convert acetaldehyde to acetone?
- Which of the following compounds will undergo Cannizzaro reaction?
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) (i) Decarboxylation (B) (ii)…
- A compound X with the molecular formula C 3 H 8 O can be oxidised to another compound Y whose molecular formula is C 3…
- Which of the following orders is not correct for the decreasing order of acidic character?
- The product ( X ) will be
- Which among the following is most reactive to give nucleophilic addition?
- Identify ( X ), ( Y ) and ( Z ) in the given reaction. CH _ 3 CHO [ H _ 2 SO _ 4 ] K _ 2 Cr _ 2 O _ 7 (X) PCl _ 5 (Y) […
- The best oxidising agent for oxidation of is
- Complete the reactions with appropriate products. (i) CH 3 CHO + NH 2 OH → X (ii) CH _ 2 = CH _ 2 + PdCl _ 2 + H _ 2 O…
- Which of the following will not give aldol condensation?
- Which of the following is the correct order of relative strength of acids?
- Complete the missing links ( X ), ( Y ) and ( Z ) by making an appropriate choice.
- Aldehydes other than formaldehyde react with Grignard’s reagent to give addition products which on hydrolysis give
- Identify ( X ), ( Y ) and ( Z ) in the given reaction. CH _ 3 COCH _ 3 [ heat ] I _ 2 + NaOH X [ heat ] Ag Y [ heat ] H…
- Identify ( X ), ( Y ) and ( Z ) in the given reaction. .
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) R COCH _ 3 [ HCl ] Zn - Hg R…
- Which is the correct method of synthesising acetamide from acetone?
- Which of the following statements is correct regarding formic acid?
- Hydrocarbons are formed when aldehydes and ketones are reacted with amalgamated zinc and conc. HCl. The reaction is…
- In the following reaction, . The organic product X has the structure
- Fill in the reagents for the given conversion:
- Few simple chemical tests are given below to differentiate between the pairs of compounds. Which of the following tests…
- CH 3 OH X Y Z . The final product in the reaction is
- Which of the following IUPAC names is not correctly matched?
- Identify ( X ), ( Y ) and ( Z ) reagents in the given sequence of reaction. CH CH X CH _ 3 CHO Y CH _ 3 CH ( OH ) CH _…
- In the following reaction, product ( P ) is
- Identify X and Y in the reaction:
- Complete the missing links. A CH _ 3 MgBr B H _ 3 O ^ + C
- The order of reactivity of CH 3 CHO, CH 3 COC 2 H 5 and CH 3 COCH 3 is
- Which is the most suitable reagent for the following conversion?
- Which of the following products does not match correctly with the reaction?
- ( X ) in the above reaction is
- The final product ( C ) obtained in the reaction sequence is CH _ 3 CH _ 2 COOH PCl _ 3 (A) C _ 6 H _ 6 AlCl _ 3 (B) […
- Propanal on treatment with dilute sodium hydroxide gives
- The most suitable reagent for the conversion of R CH 2 OH → R CHO is
- Which of the following carbonyl compounds is most polar?
- Study the given reaction and identify the process which is carried out.
- Structure of A and type of isomerism in the above reaction are
- Which of the following compounds will give a coloured crystalline compound with ?
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…
- Which of the following reagents can not be used to oxidise primary alcohols to aldehydes?
- Acetic acid can be halogenated in presence of phosphorus and chlorine. Formic acid cannot be halogenated with same way…
- The condensation product of benzaldehyde and acetone is
- In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice…
- In the following sequence of reaction, the final product ( Z ) is
- The correct order of strength of acidity of the following compounds is: CH_3COOH CH_3CH_2COOH CCl_3COOH CF_3COOH
- An organic compound ( X ) with molecular formula C 9 H 10 O gives positive 2,4-DNP and Tollen’s tests. It undergoes…
- Which compound is obtained when acetaldehyde is treated with dilute solution of caustic soda?
- What is the test to differentiate between pentan-2-one and pentan-3-one?
- 1-Phenylethanol can be prepared by the reaction of benzaldehyde with
- Fill in the blanks by suitable choices. The carbon atom in carbonyl group is ________ hybridised. The carbonyl group in…
- Glucose HCN X Hydrolysis Y [ Heat ] HI Z . Identify Z .
- Which of the following will not yield acetic acid on strong oxidation?
- Which of the following reactions will give benzophenone? (i) Benzoyl chloride + Benzene + AlCl 3 (ii) Benzoyl chloride…
- Study the following sequence of reactions and identify the product ( Y ). CH _ 3 CHO + HCHO [ heat ] dil. NaOH X [ H _…
- An aromatic compound ( X ) (C 8 H 8 O) gives positive 2,4-DNP test. It gives a yellow precipitate of compound ( Y ) on…
- Various products formed on oxidation of 2,5-dimethylhexan-3-one are (i) (ii) (iii) CH 3 COOH (iv) HCOOH
- Identify the products ( X ) and ( Y ) in the given reaction:
- Propanone on reaction with alkyl magnesium bromide followed by hydrolysis will produce
- Identify the final product of the reaction sequence.
- An organic compound of molecular formula C 3 H 6 O did not give a silver mirror with Tollen’s reagent but gave an oxime…
- Consider the following reaction: Phenol Zn dust X [ anhyd. AlCl 3] CH _ 3 Cl Y alkaline KMnO _ 4 Z , The product Z is
- A compound ( X ) with a molecular formula C 5 H 10 O gives a positive 2,4-DNP test but a negative Tollen’s test. On…
- Arrange the following compounds is increasing order of their reactivity in nucleophilic addition reactions. Ethanal…
- –OH group present in alcohols is neutral while it is acidic in carboxylic acid because
- Benzoyl chloride on reduction with H 2 /Pd – BaSO 4 produces
- In the reaction the products are
- In nucleophilic addition reactions, the reactivity of carbonyl compounds follows the order
- The final product ( Y ) in the following sequence of chemical reaction is CH _ 3 OH [300^ C ] Cu X NaOH Y+ CH _ 3 OH
- . X and Y in the reaction are
- Study the following reactions and mark the appropriate choice. (A)+ C _ 2 H _ 5 OH (B)+(C) (C)+ HOH H ^ + (B)+(D) (D) […
- To differentiate between pentan-2-one and pentan-3-one a test is carried out. Which of the following is the correct…
- When propanal reacts with 2-methylpropanal in presence of NaOH, four different products are formed. The reaction is…
- A diene, buta-1, 3-diene was subjected to ozonolysis to prepare aldehydes. Which of the following aldehydes will be…
- Addition of water to alkynes occurs in acidic medium and in the presence of Hg 2+ ions as a catalyst. Which of the…
- Ketones can be obtained in one step by (where R and R ′ are alkyl groups)
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) Clemmensen reduction (i)…
- The reaction is an example of
- Benzaldehyde can be prepared from benzene by passing vapours of ......... and ........... in its solution in presence…
- Fill in the blanks. In Hell Volhard Zelinsky reaction, the carboxylic acids are halogenated at _____ position by using…
- The end product ( Z ) in the given sequence of reaction is
- Identify the reagents X , Y and Z for the following products. (i) (ii) (iii)
- Cumene on reaction with oxygen followed by hydrolysis gives
- Identify P , Q , R , S , T in the given sequence of reaction.
- The product of hydrolysis of ozonide of 1-butene are
- Which reducing agent is used for the following conversion? R COOH R CH _ 2 OH