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NEET CHEMISTRYAlcohols, Phenols and EthersMedium

Question

Chloropicrin is obtained by the reaction of:

A

Nitric acid on chlorobenzene

B

Chlorine on picric acid

C

Nitric acid on chloroform

D

Steam on carbon tetrachloride

Step-by-Step Solution

Chloropicrin (CCl3NO2\text{CCl}_3\text{NO}_2), also known as nitrochloroform or tear gas, is obtained when chloroform (CHCl3\text{CHCl}_3) reacts with concentrated nitric acid (HNO3\text{HNO}_3). In this reaction, the hydrogen atom of chloroform is replaced by the nitro group (−NO2-\text{NO}_2) from nitric acid. The chemical equation is: CHCl3+HNO3→ΔCCl3NO2+H2O\text{CHCl}_3 + \text{HNO}_3 \xrightarrow{\Delta} \text{CCl}_3\text{NO}_2 + \text{H}_2\text{O}

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from Alcohols, Phenols and Ethers. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYAlcohols, Phenols and Etherschloropicrinobtainedreaction

More Alcohols, Phenols and Ethers Questions

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When phenol is treated with CHCl₃ and NaOH, the product formed is:

A.Benzaldehyde
B.Salicylaldehyde
C.Salicylic acid
D.Benzoic acid
EasySolve

Which of the following statement is correct for the stability of ions of ethyl alcohol and phenol:

A.Delocalization of π-electrons in phenoxide ion
B.Delocalization of electrons in ethoxide ion
C.Inductive effect of ethyl and phenyl group
D.Localization of σ-electrons in phenoxide ion
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When glycerol is treated with an excess of HI, it produces:

A.Allyl iodide
B.Propene
C.Glycerol triiodide
D.2-Iodopropane
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Which of the following can be used as the halide component for Friedel-Crafts reaction?

A.Chlorobenzene
B.Bromobenzene
C.Chloroethene
D.Isopropyl chloride
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Which of the following is not the product of dehydration of the given alcohol?

A.Option 1
B.Option 2
C.Option 3
D.Option 4
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The most reactive compound among the following toward electrophilic aromatic substitution reaction is:

A.Toluene
B.Benzene
C.Chlorobenzene
D.Nitrobenzene
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Which one of the following compounds will be most readily dehydrated?

A.Option 1
B.Option 2
C.4
D.Option 4
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Among the following four compounds: (a) Phenol (b) Methyl phenol (c) meta-nitrophenol (d) para-nitrophenol The acidity order is:

A.c > d > a > b
B.a > d > c > b
C.b > a > c > d
D.d > c > a > b
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