The major product of the following reaction is :
Reactant: Ph-CO-CH2CH2-CN; (i) \(\mathrm{CH_3MgBr}\) (excess); (ii) \(\mathrm{H_3O^+}\)

Every question from past board papers on Aldehydes and ketones: HCN, NH3 derivatives, Grignard, oxidation, reduction (Wolff-Kishner, Clemmensen), newest paper first. Open any question for its full worked answer.
The major product of the following reaction is :
Reactant: Ph-CO-CH2CH2-CN; (i) \(\mathrm{CH_3MgBr}\) (excess); (ii) \(\mathrm{H_3O^+}\)

Identify the suitable reagent for the following conversion.
Methyl benzoate (Ph-COOCH3) \(\to\) benzaldehyde (Ph-CHO)

Identify the correct reagents that would bring about the following transformation.
[structure transformation shown in figure: ring-CH\(_2\)-CH=CH\(_2\) \(\rightarrow\) ring-CH\(_2\)-CH\(_2\)-CHO]

Match List I with List II.
List I (Reactions): A. [structure: bicyclohexylidene \(\rightarrow\) 2 cyclohexanone] B. [structure: benzene \(\rightarrow\) benzophenone] C. [structure: cyclohexanol \(\rightarrow\) cyclohexanone] D. [structure: ethylbenzene \(\rightarrow\) potassium benzoate]
List II (Reagents/Condition): I. benzoyl chloride / Anhyd. \(AlCl_3\) II. \(CrO_3\) III. \(KMnO_4\)/KOH, \(\Delta\) IV. (i) \(O_3\) (ii) \(Zn\)-\(H_2O\)
Choose the correct answer from the options given below:

Complete the following reaction :
cyclohexanone [A] \(\xrightarrow{HCN}\) cyclohexanone cyanohydrin (1-hydroxycyclohexanecarbonitrile) [B] \(\xrightarrow[\Delta]{conc.\ H_2SO_4}\) [C]
[C] is ________.

Identify product (A) in the following reaction :
3-(3-acetylphenyl)-substituted cyclohexyl methyl ketone: a cyclohexane ring bearing an acetyl group, joined to a benzene ring bearing an acetyl group (meta), \(\xrightarrow[\text{conc. HCl}]{\text{Zn-Hg}}\) (A) + 2H\(_2\)O

\(RMgX + CO_2 \xrightarrow{\text{dry ether}} Y \xrightarrow{H_3O^+} RCOOH\)
What is Y in the above reaction ?
Match List - I with List - II.
List - I (Products formed): (a) Cyanohydrin (b) Acetal (c) Schiff's base (d) Oxime
List - II (Reaction of carbonyl compound with): (i) \(NH_2OH\) (ii) \(RNH_2\) (iii) alcohol (iv) HCN
Choose the correct answer from the options given below :
What is the IUPAC name of the organic compound formed in the following chemical reaction ?
Acetone \(\xrightarrow[\text{(ii) } H_2O, H^+]{\text{(i) } C_2H_5MgBr,\ \text{dry Ether}}\) Product
The product formed in the following chemical reaction is :
2-(methyl-substituted) cyclohexanone bearing \(CH_2-C(=O)-OCH_3\) and \(CH_3\) groups \(\xrightarrow[C_2H_5OH]{NaBH_4}\) ?

Match List - I with List - II.
List - I : (a) benzene \(\xrightarrow[\text{Anhyd. }AlCl_3/CuCl]{CO,\ HCl}\) (b) \(R-CO-CH_3 + NaOX \rightarrow\) (c) \(R-CH_2-OH + R'COOH \xrightarrow{\text{Conc. }H_2SO_4}\) (d) \(R-CH_2COOH \xrightarrow[\text{(ii) }H_2O]{\text{(i) }X_2/\text{Red P}}\)
List - II : (i) Hell-Volhard-Zelinsky reaction (ii) Gattermann-Koch reaction (iii) Haloform reaction (iv) Esterification
Choose the correct answer from the options given below.

The intermediate compound 'X' in the following chemical reaction is :
toluene \(+ CrO_2Cl_2 \xrightarrow{CS_2} X \xrightarrow{H_3O^+}\) benzaldehyde

Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give :
The product formed by the reaction of an aldehyde with a primary amine is :
The correct structure of the product \(A\) formed in the reaction [cyclohex-2-enone, \(H_2\) (gas, 1 atmosphere), Pd/carbon, ethanol \(\rightarrow A\)] is
