Practice free Alcohol, phenol & ether (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Ethers are not distilled to dryness for fear of explosion. This is due to formation of:
Peroxides decompose violently on heating.
Absolute alcohol contains:
(d) Absolute alcohol is 100% alcohol.
Dialkyl sulphides are known as:
(c) R-S-R or R-SR' are thioethers.
Diethyl ether absorbs oxygen to form:
Diethyl ether absorbs oxygen from the air to form an unstable and highly explosive compound called ether peroxide. It is a colorless oily liquid and is an important industrial hazard.
Propan-1-ol may be prepared by reaction of propene with
(c) Hydroboration-oxidation reaction
6CH3CH=CH2 2(CH3CH2CH2)3B
Tri-n-propyl borane
H2O2/OH-
6CH3CH2CH2OH
Power alcohol is a mixture of petrol and alcohol in the ratio:
Power alcohol is used to generate power.
The formula for allyl alcohol is:
(b) -OH gp. is on allyl gp. (CH2=CH-CH2-)
The -OH group of an alcohol or the -COOH group of a carboxylic acid on can be replaced by -Cl using
(a) The -OH group of alcohol or the -COOH group of a carboxylic acid is replaced by -Cl using phosphorus pentachloride (i.e PCl5)
ROH + PCl5RCl + POCl3 + HCl
Alcohol
RCOOH + PCl5RCOCl + POCl3 + HCl
Acid
p-nitrophenol is stronger acid than phenol because nitro group is:
(a) It is a reason for the fact.
Which of the following has highest boiling point?
(b)
Due to intermolecular H-bonding in phenol
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