The major product formed when cyclohexanecarbaldehyde reacts with PhMgBr and H₃O⁺ is:

1.		2.
3.		4.	None of these

What is the major product of the reaction between cyclohexanecarbaldehyde and Tollens' reagent?

1.		2.
3.		4.	None of these

For the following substrates, the characteristic aldol condensation occurs with?

i) Methanal (ii) 2-Methylpentanal (iii) Benzaldehyde

(iv) Benzophenone (v) Cyclohexanone (vi) 1-Phenylpropanone

(vii) Phenylacetaldehyde (viii) Butan-1-ol (ix) 2,2-Dimethylbutanal

1. (ii), (v), (vi), (vii)

2.  (iii) & (iv)

3. all of the above

4. none of these

The compounds that undergoes the Cannizzaro reaction are: 

(i) Methanal

(ii) 2-Methylpentanal

(iii) Benzaldehyde

(iv) Benzophenone

1. (i)

2. (ii)

3. (i), (iii) 

4. (i), (ii), (iii) 

Propanal and butanal can produce four different aldol condensation products. The possible structures are:

1.
2.
3.	Both (1) and (2)
4.	None of these

1. Low electrophilicity in 2,2,6-trimethylcyclohexanone

2. Less steric crowd in  2,2,6-trimethylcyclohexanone

3. More steric crowd in  2,2,6-trimethylcyclohexanone

4. High electrophilicity in 2,2,6-trimethylcyclohexanone

There is only one –NH₂ group involved in semicarbazone formation out of two –NH₂ group. It is due to:

1. Resonance  of one type of –NH₂ group

2. Inductive effect of one type of –NH₂ group

3. Hyperconjugation of one type of –NH₂ group

4. Reverse hyperconjugation of one type of -NH₂ group

What type of reaction is demonstrated by the process involving a carboxylic acid, an alcohol, and an acid that results in the formation of esters?
1. Reversible slow process
2. Irreversible fast process
3. Cyclic process
4. Adiabatic process

The below reaction is an example of

\(CH_{3}CH_{2}OH \ + \ CH_{3}COCl \xrightarrow[]{\textbf{Pyridine}} \)
\( CH_{3}COOC_{2}H_{5} \ + \ HCl\)

1. Acetylation

2. Benzoylation

3. Cross aldol condensation

4. Cross Cannizzaro reaction

The correct sequence of reagents used for the preparation of

Methyl benzoate  from benzene  is -

1. a = Br₂ / FeBr₃ ; b = Mg/ Dry ether ;  c = CO_{2 ;} H₃O⁺ ; d = Excess methanol conc. H⁺ Heat 

2. a = Mg/ Dry ether ; b = Br₂ / FeBr₃ ;  c = CO_{2 ;} H₃O⁺ ; d = Excess methanol conc. H⁺ Heat

3. a = CO_{2 ;} H₃O⁺ ; b = Br₂ / FeBr₃ ;  c = Mg/ Dry ether  ; d = Excess methanol conc. H⁺Heat 

4. a = Excess methanol conc. H⁺ Heat  ; b = Br₂ / FeBr₃ ;  c = Mg/ Dry ether ; d = CO_{2 ;} H₃O⁺