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Oxidation Reactions of Alcohol
Oxidation Reactions of Alcohol
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1)
Which of the following compounds is formed when secondary alcohols are oxidised by [O]
Aldehyde
Ether
Amine
Ketone
2)
Which of the reagents listed below cannot be used to convert primary alcohols to aldehydes?
CrO3 in anhydrous medium
Heat in the presence of Cu at 573 K
Pyridinium chlorochromate
KMnO4 in acidic medium
3)
Which of the following oxidising agents is used to obtain carboxylic acids directly from alcohols?
Anhydrous CrO3
Aqueous KMnO4
Alkaline KMnO4
Acidified KMnO4
4)
The oxidation of alcohol involves the cleavage of _____ bonds.
C-H
O-H
O-H and C-H
Hydrogen
5)
Alcohols respond as ________ when the link between the O and H of the hydroxyl group is broken.
Protonated molecules
Nucleophiles
Electrophile
Electron seeking compounds
6)
An Organic Compound with a Pleasant Odour and 78 Degrees Boiling Point is Boiled with Concentrated H2SO4. It gives a Colourless gas that Decolorizes Bromine Water and Alkaline Potassium Permanganate. What is this Organic Compound?
C2H6
C2H5Cl
C2H5COOCH3
C2H5OH
7)
When ethanol is completely oxidised, it produces
Ethanal
Acetic acid/ethanoic acid
Acetone/Ethenone
CO2 and water
8)
When heated with ethanol and a small amount of sulfuric acid, which of the following produces a nice aroma of ester?
CH3CH2OH
CH3OH
CH3COOH
CH3CHO
9)
Ethanol undergo oxidation under the presence of Condition A) CrO3 in Acetic acid Condition B) Alkaline KMnO4 Identify the product A and B
Ethanoic acid, Ethanal
Ethanal, Carbon dioxide and water
Ethanal , Ethanoic acid
Ethanoic acid , Carbon dioxide and water
10)
Ethyl alcohol is made in industry from ethylene.
Permanganate oxidation
Catalytic reduction
Absorbing in H2SO4 followed by hydrolysis
All of these