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Practice Test 2

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Ethylene oxide when treated with Grignard reagent yields

tertiary alcohol
cyclopropyl alcohol
primary alcohol
secondary alcohol

Solution

n-Propyl alcohol and isopropy alcohol can be chemically distinguished by which reagent?

PCl₅
Reduction
Oxidation with potassium dichromate
Ozonolysis

Solution

C₂H₅CH₂CHO
C₂H₅CH₂CH₂OH
C₂H₅CH₂OH
C₂H₅CHO

Solution

HBr reacts fastest with

2-Methylpropan-1-ol
2-Methylpropan-2-ol
propan-2-ol
propan-1-ol

Solution

Greater the stability of the intermediate carbocation, more reactive is the alcohol. Since 2-methylpropan-2-ol generates 3° carbocation, therefore, it reacts fastest with HBr.

When alcohol reacts with concentrated H₂SO₄, intermediate compound formed is :

carbonium ion
alkoxy ion
alkyl hydrogen sulphate
none of the above

Solution

Methanol is industrially prepared by

oxidation of CH₄ by steam at 900°C
reduction of HCHO using LiAlH₄
reaction HCHO with a solution of NaOH
reduction of CO using H₂ and ZnO – Cr₂O₃.

Solution

The C–O–H bond angle in ethanol is nearly

90°
104°
120°
180°

Solution

2, 4, 6-tribromophenol
2-bromo-4-hydroxylbenzene sulphonic acid
3, 5-dibromo-4-hydroxybenzene sulphonic acid
2-bromophenol

Solution

1, 1-dimethyl-1, 3-butanediol
2-methyl-2, 4-pentanediol
4-methyl-2, 4-pentanediol
1, 3, 3-trimethyl-1, 3-propanediol

Solution

Which of the following is dihydric alcohol ?

Glycerol
Ethylene glycol
Catechol
Resorcinol

Solution

UnAttempted

0

Attempted

0

Correct

0

Wrong

0

Alcohols, Phenols And Ethers

Attempted

Correct

UnAttempted

Wrong