Organic Chemistry Questions and Answers – Preparation of Nitro Compounds | Organic Chemistry Multiple Choice Questions and Answers

Questions
1 Which of the following is used as a reactant for the nitration of benzene to form nitrobenzene?
A HNO2
B HNO3
C Mixture of HNO2 AND HNO3
D Mixture of HNO2 and H2SO4 

Answer:Mixture of HNO2 AND HNO3
2 What is the name of the following reaction?

Organic Chemistry

A Ter meer reaction
B Riemer tiemann reaction
C Perkin condensation
D Ullmann reaction

Answer: Ter meer reaction
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3 In Ter Meer reaction, a method of preparation of nitro compound, which of the following used as reagent?
A HNO2
B HNO3
C NaNO2
D RX (alkyl halide)

Answer:NaNO2
4 What will be the product if 1,1-halonitroalkane undergoes nucleophilic aliphatic substitution reaction in presence of ethanol?
A 1,1-dinitro dimer
B 1,2-dinitro dimer
C 1.-nitro compound
D 2-nitrocompound

Answer:1,1-dinitro dimer
5 What will be the product if 1,1-halonitroalkane undergoes nucleophilic aliphatic substitution reaction in presence of potassiam hydroxide?
A 1,1-dinitro dimer
B 1,2-dinitro dimer
C 1.-nitro compound
D 2-nitrocompound

Answer:1,2-dinitro dimer
6 Which of the following is not a natural occurring nitro compound?
A Chloramphenicol
B 2-Nitrophenol
C 3-Nitropropionic acid
D nitrobenzene

Answer:nitrobenzene
7 Which gives a meta-nitro compound as the main product upon nitration with a nitric acid-sulfuric acid mixture?

Organic Chemistry

A (a)
B (b)
C (c)
D (d)

Answer:(c)
8 Which combination of reagents used in the indicated order with benzene will give m-nitropropylbenzene?
A i) HNO3/H2SO4, ii) CH3CH2CH2Cl/AlCl3
B i) CH3CH2CH2Cl/AlCl3, ii) HNO3/H2SO4
C i) CH3CH2COCl/AlCl3, ii) HNO3/H2SO4, iii) H2NNH2/NaOH
D i) HNO3/H2SO4, ii) CH3CH2COCl/AlCl3, iii) H2NNH2/NaOH

Answer:i) HNO3/H2SO4, ii) CH3CH2COCl/AlCl3, iii) H2NNH2/NaOH
9 Nitration of furan using acetyl nitrate also leads to a 2,5-addition product. How can this competing process be suppressed?
A By using concentrated nitric and sulfuric acids instead of acetyl nitrate
B By carrying out the reaction at higher temperatures
C By carrying out the nitration in the presence of pyridine
D By using nitric acid instead of acetyl nitrate

Answer:By carrying out the nitration in the presence of pyridine
10 Predict the major product of the following reaction.

Organic Chemistry

A o-nitrobenzaldehyde and p-nitrobenzaldehyde
B m-nitrobenzaldehyde
C o-formylbenzenesulfonic acid and p-formylbenzenesulfonic acid
D m-formylbenzenesulfonic acid

Answer:m-nitrobenzaldehyde

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