Organic Chemistry MCQ Questions for IAT_NEST

Practice Questions

One question at a time with instant answer view.

Q1SingleMarks: 4.00Negative: -1.00

2-Phenylcyclohexanone undergoes EtMgBr/H2O, dehydration, then reductive ozonolysis. Identify the major product.

A. Starting ketone-like structure AB. Dialdehyde/diketone structure BC. EtCO-(CH2)4-COPhD. Aldehyde/diketone structure D

Q2SingleMarks: 4.00Negative: -1.00

Which carbonyl compound reacts fastest with propylamine to form an imine?

A. p-MethoxybenzaldehydeB. p-NitrobenzaldehydeC. p-CyanobenzaldehydeD. p-Nitroacetophenone

Q3SingleMarks: 4.00Negative: -1.00

A keto ester is protected with ethylene glycol/HCl and then treated with LiAlH4/H2O. Identify final product Y.

A. Protected ketone with terminal aldehydeB. Protected ketone with terminal primary alcoholC. Unprotected ketone with terminal primary alcoholD. Diol with secondary and primary OH

Q4SingleMarks: 4.00Negative: -1.00

In which case will the alpha-hydrogen NOT be abstracted by one equivalent of base?

A. AcetoneB. Butanoic acidC. 5,5-dimethylcyclohexane-1,3-dioneD. Nitro-substituted amide shown in source

Q5SingleMarks: 4.00Negative: -1.00

Arrange compounds i–iv shown in the paper in decreasing basicity.

A. i > iv > iii > iiB. iii > i > iv > iiC. i > iii > iv > iiD. ii > i > iii > iv

Organic Chemistry MCQ Questions for IAT_NEST

Subtopics

Acidity and enolates

Basicity

Carbonyl reactivity

Grignard and ozonolysis

Protection and reduction

Practice Questions

Practice Questions