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Organic Chemistry Questions

Practice 427 Organic Chemistry questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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427
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289
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45
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Practice by Exam:Chemistry(395)CHEMISTRY(14)Mathematics and Science(7)General Science(3)General Knowledge and General Awareness(2)Science(2)General Awareness(2)General Knowledge(1)

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Q401mediummcqChemistryChemistry
Given are cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV). In these the order of decreasing acidic character will be:
Q402easymcqChemistryChemistry
Which one of the following compounds has the most acidic nature?
Q403easymcqChemistryChemistry
Which one is most reactive towards electrophilic reagent?
Q404mediummcqChemistryChemistry
Which of the following biphenyls is optically active?
image
image
Q405mediummcqChemistryChemistry
In a set of reactions, ethyl benzene yielded a product D: image would be:
Q406easymcqChemistryChemistry
Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by:
Q407mediummcqChemistryChemistry
The reaction of toluene with in presence of gives and reaction in presence of light gives . Thus, and are:
Q408mediummcqChemistryChemistry
Aniline in a set of the following reactions yielded a coloured product Y: image The structure of Y would be:
Q409mediummcqChemistryChemistry
Which one of the following is NOT a condensation polymer?
Q410mediummcqChemistryChemistry
Among the following compounds the one that is most reactive towards electrophilic nitration is:
Q411mediummcqChemistryChemistry
The correct order of decreasing acid strength of trichloroacetic acid (A), trifluoroacetic acid (B), acetic acid (C) and formic acid (D) is:
Q412mediummcqChemistryChemistry
Which nomenclature is NOT according to the IUPAC system?
image
Q413mediummcqChemistryChemistry
Which of the following acids does NOT exhibit optical isomerism?
Q414mediummcqChemistryChemistry
In the following sequence of reactions:

The end product (C) is:
Q415mediummcqChemistryChemistry
Which one of the following sets of monosaccharides forms sucrose?
Q416mediummcqChemistryChemistry
Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is:
image
Q417mediummcqChemistryChemistry
Deficiency of vitamin causes the disease:
Q418mediummcqChemistryChemistry
In the following reaction:
image
The major product is:
image
Q419mediummcqChemistryChemistry
Trichloroacetaldehyde, reacts with chlorobenzene in presence of sulphuric acid and produces:
Q420mediummcqChemistryChemistry
and can be distinguished chemically by:
Q421easymcqChemistryChemistry
Which of the following compounds will give a yellow precipitate with iodine and alkali?
Q422mediummcqChemistryChemistry
Which of the following reagents will be able to distinguish between -butyne and -butyne?
Q423easymcqChemistryChemistry
Consider the following reaction:image
The product 'A' is:
Q424mediummcqChemistryChemistry
An organic compound () (), when treated with nitrous acid, gave an alcohol and gas was evolved. () on warming with and caustic potash gave () which on reduction gave isopropylmethylamine. Predict the structure ().
image
Q425mediummcqChemistryChemistry
Consider the reaction:

What sort of reaction is it?
Q426mediummcqChemistryChemistry
The mechanisms of reactions and are: Isobutyl bromide Ether Isobutyl bromide Ether
Q427mediummcqChemistryChemistry
What is the order of reactivity of with the following:
image
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