Question # 1

Taste of lower alcohols is:

Choose an answer

Sweet

Bitter

Our

Salty

Which more acidic?

Choose an answer

o-cresol

p-nitrophenol

phenol

m-cresol

Diethyl ether is obtained by Williamsons synthesis using

Choose an answer

Ethanol + Na + C₂H₅Br

Ethanol + Mg + C₂H₅Br

Methanol + Na + CH₃Br

Methanol + Mg + CH₃Br

The only alcohol that can be prepared by the indirect hydration of alkene is

Choose an answer

ethyl alcohol

propyl alcohol

isobutyl alcohol

methyl alcohol

Alcohols reacts with Grignard reagent to form

Choose an answer

Alkanes

Alkenes

Alkynes

All

Which of the following is weakly acidic in nature

Choose an answer

Alcohol

Phenol

Aidehyde

Amide

Which is possible in ethers?

Choose an answer

Reactivity high

Oxidation and reduction

Reactivity towards bases

Towards acids

Ethyl alcohol on oxidation with K₂Cr₂O₇gives

Choose an answer

Acetic acid

Acetaldehyde

Formaldehyde

Formic acid

A compound of the formula C₄H₁₀O_{reacts with sodium and undergoes oxidation to give a carbonyl compound which does not reduce Tollen's reagent, the original compound is}

Choose an answer

Diethyl ether

n-Butyl alcohol

Isobutyl alcohol

sec-Butyl alcohol

To prepare ethanol by fernentation the optimum temp. is

Choose an answer

10 - 20°C

25 - 30°C

20°C

35°C

Phenol was discovered by:

Choose an answer

Hofmann

Runge

Henderson

Bakelite

Which of the following compound is known as oil of winter green?

Choose an answer

Phenyl benzoate

Phenyl salicylate

Phenyl acetate

Methyl salicylate

Which of the following is the most suitable method for removing the traces of water from ethanol?

Choose an answer

Reacting with Na metal

Passing dry HCl through it

Distilling it

Reacting with Mg

Dehydration of ethyl alcohol yields

Choose an answer

Aldehyde

Ketone

Acid

Alkene

Choose an answer

Aqueous bromine

Dilute HNO₃

Dilute HCI

CH₃COCI

Which one is primary alcohol?

Choose an answer

Buten-2-ol

Propan-2-ol

Butaon-1-ol

2,3-Dimethylhexane-4-ol

The malt-sugar in the presence of yeast or invertase gives

Choose an answer

Fructose

Glucose

Lignin

Alcohol

which enzyme is not involved in the fermentation of starch ?

Choose an answer

Diastase

Zymase

Urease

Invertase

Industrial alcohol may be denaturated by the addition of

Choose an answer

Methyl alcohol

Acetone

Pyridine

Any of the above reagent

What will react differently with the two isomeric pentols, (CH₃)₃CCH₂OH and (CH₃)₂CH CH₂CH₂OH

Choose an answer

Acidified (aq) KMnO₄

Concentrated H₂SO₄

PCl

Sodium

An alcohol with molecular formula C_nH_2n+1OH has a chiral carbon atom but does not react with MnO^-₄/H⁺what is the least number of carbon atoms such an alcohol could possess

Choose an answer

5

6

7

8

Williamson's synthesis is used to prepare

Choose an answer

Diethylether

Phenolphthalein

Hydrogenation

Bakelite

Which compound is more soluble in water

Choose an answer

C₂H₅OH

Benzene

CH₃OCH₃

Hexane

Mild oxidation of glycerol with H₂O₂/FeSO₄gives

Choose an answer

Glyceraldehyde

Dihydroxy acetone

Glycerose

None

Which compound is more soluble in water?

Choose an answer

C₂H₅OH

C₅H₅OH

CH₃OCH₃

n-Hexanol

Organic acid without a carboxylic acid group is

Choose an answer

Ascorbic acid

Vinegar

Oxalic acid

Picric acid

When sodium metal reacts with alcohols

Choose an answer

Hydrogen gas evolves

Sodium hydroxide is obtained

Alcohol is reduced

Alcohol is polymerised

Which compound will not dissolve in H₂O

Choose an answer

C₆H₆

C₂H₅OH

CH₃CH₂CH₂OH

CH₃- OH

According to Lewis concept ethers behave as:

Choose an answer

Acid

Base

Acid as well as a base

None of them

An organic compound 'X' on treatment with acidified K₂Cr₂O₇gives a compound 'Y' which reacts with I₂and sodium carbonate to form Triodomethane. The compound 'X' is

Choose an answer

CH₃OH

CH₃CHO

CH₃CH(OH)CH₃

CH₃COCH₃

Alcohol can be denaturated by adding:

Choose an answer

Acetone

Methanol

Pyridine

All

More Classes

Other Links

ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer