MEDIUM
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The group reagent for the test of alcohols is

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Important Questions on Alcohols, Phenols and Ethers

HARD
Phenol on treatment with CO2 in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment with CH3CO2O in the presence of catalytic amount of H2SO4 produces:
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The functional group which is formed when Phenol is made to react with Chloroform in the presence of dilute Sodium hydroxide

EASY
Which one of the following substituents at para-position is most effective in stabilizing the phenoxide Question Image ion ?
MEDIUM
The organic compound that gives following qualitative analysis is:
  Test Inference
(a) Dil.HCl Insoluble
(b) NaOH solution Soluble
(c) Br2/water Decolourization
MEDIUM
Arrange the following compounds in order of decreasing acidity :
Question Image
HARD
Phenol reacts with methyl chloroformate in the presence of NaOH to form product A. A reacts with Br2 to form product B. A and B are respectively
HARD

The increasing order of the pKa values of the following compounds is:
Question Image

HARD
The reactivity of compound Z with different halogens under appropriate conditions is given below:
Question Image
The observed pattern of electrophilic substitution can be explained by
MEDIUM
Which of the following compounds will not be soluble in sodium bicarbonate?
MEDIUM
Which of the following will not be soluble in sodium hydrogen carbonate?
MEDIUM
What will be the major product when m-cresol is reacted with propargyl bromide HCC-CH2Br in presence of K2CO3 in acetone?
EASY
A compound is soluble in concentrated H2SO4. It does not decolourise bromine in carbon tetrachloride but is oxidised by chromic anhydride in aqueous sulphuric acid within two seconds, turning orange solution to blue, green and then, opaque. The original compound is