Samacheer Kalvi solutions for Chemistry - Volume 1 and 2 [English] Class 12 TN Board chapter 12 - Carbonyl Compounds and Carboxylic Acids [Latest edition]

The correct structure of the product ‘A’ formed in the reaction is

The formation of cyanohydrin from acetone is an example of ____________.

Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:

In the following reaction,

\[\ce{HC ≡ CH ->[H2SO4][HgSO4] X}\]

Product ‘X’ will not give

\[\ce{CH2 = CH2 ->[i) O3][ii) Zn/H2O] X ->[NH3] Y}\] ‘Y’ is:

Predict the product Z in the following series of reactions.

\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]

Assertion: 2, 2-dimethyl propanoic acid does not give HVZ reaction.

Reason: 2-2, dimethyl propanoic acid does not have α-hydrogen atom.

Which of the following represents the correct order of acidity in the given compounds.

\[\ce{Benzoic acid ->[i) NH3][ii) \Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\] ‘C’ is:

\[\ce{Ethanoic acid ->[P/Br2] 2-bromoethanoic acid}\]. This reaction is called ____________.

\[\ce{CH3Br ->[KNC] (A) ->[H3O^+] (B) ->[PCl5] (C)}\] product (C) is:

Which one of the following reduces tollens reagent.

‘B’ is:

The IUPAC name of

Identify the product formed in the reaction.

In which case, chiral carbon is not generated by reaction with HCN.

Assertion: p-N, N-dimethyl amino benzaldehyde undergoes benzoin condensation

Reason: The aldehydic (−CHO) group is meta directing.

Which one of the following reaction is an example of disproportionation reaction.

Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid.

The reagent used to distinguish between acetaldehyde and benzaldehyde is ____________.

Phenyl methanal is reacted with concentrated NaOH to give two products X and Y. X reacts with metallic sodium to liberate hydrogen X and Y are ____________.

In which of the following reactions new carbon-carbon bond is not formed?

An alkene “A” on reaction with O₃ and Zn – H₂O gives propanone and ethanol in equimolar ratio. Addition of HCl to alkene “A” gives “B” as the major product. The structure of product “B” is

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.

How is propanoic acid is prepared to start from alcohol?

How is propanoic acid is prepared to start from an alkyl halide?

How is propanoic acid is prepared to start from an alkene?

A Compound (A) with molecular formula C₂H₃N on acid hydrolysis gives (B) which reacts with thionyl chloride to give compound (C). Benzene reacts with compound (C) in presence of anhydrous AlCl₃ to give compound (D). Compound (D) on reduction with Zn/Hg and Conc. HCl gives (E). Identify (A), (B), (C), (D) and (E). Write the equations.

Identify X and Y.

\[\ce{CH3COCH2CH2COOC2H5 ->[CH3MgBr] X ->[H3O^+] Y}\]

Identify A, B and C.

Identify A, B, C and D.

\[\ce{ethanoic acid ->[SOCl2] A ->[Pd/BaSO4] B ->[NaOH] C ->[][\Delta] D}\]

An alkene (A) on ozonolysis gives propanone and aldehyde (B). When (B) is oxidised (C) is obtained. (C) is treated with Br₂/P gives (D) which on hydrolysis gives (E). When propanone is treated with HCN followed by hydrolysis gives (E). Identify A, B, C, D and E.

How will you convert benzaldehyde into the following compound?

Benzophenone

How will you convert benzaldehyde into the following compound?

Benzoic acid

How will you convert benzaldehyde into the following compound?

α-hydroxy phenyl acetic acid

What is the action of HCN on propanone?

What is the action of HCN on 2, 4-dichlorobenzaldehyde?

What is the action of HCN on ethanal?

A carbonyl compound A having molecular formula C₅H₁₀O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling's solution. Identify A.

Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.

How is the following conversion effected propanal into butanone?

How is the following conversion effected Hex-3-yne into hexan-3-one?

How is the following conversion effected phenyl methanal into benzoic acid?

How is the following conversion effected phenyl methanal into benzoin?

Complete the following reaction.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]

Identify A, B and C.

Oxidation of ketones involves carbon-carbon bond cleavage. Name the product(s) is/are formed on oxidising 2, 5-dimethyl hexan-3-one using a strong oxidising agent.

How will you prepare acetic anhydride from acetic acid?

How will you prepare ethyl acetate from methyl acetate?

How will you prepare acetamide from methyl cyanide?

How will you prepare lactic acid from ethanol?

How will you prepare acetophenone from acetyl chloride?

How will you prepare ethane from sodium acetate?

How will you prepare benzoic acid from toluene?

How will you prepare malachite green from benzaldehyde?

How will you prepare cinnamic acid from benzaldehyde?

How will you prepare acetaldehyde from ethyne?