100+ Alcohol Phenol And Ether MCQ with FREE PDF

Organic Chemistry is a most important subject for NEET, JEE, AIIMS exam. It is a foundation for most of the Life Sciences and pharmacy courses. These Alcohol Phenol And Ether MCQ questions will help you to learn the Organic chemistry in a better way for Medical entrance exams. Alcohol Phenol And Ether MCQ is provided here with explanatory answers.

Alcohol Phenol And Ether MCQ

These Alcohol Phenol And Ether MCQs contains the following topics:

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100+ Alcohol, Phenol And Ether MCQ For NEET PDF Download (Nomenclature)
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Alcohol Phenol And Ether MCQs

1. In CH3 CH2 OH, the bond that undergoes heterolytical change most readily is

a) C-C

b) C-O

c) C-H

d) O-H

Answer: O-H

2. In the reaction of phenol with CHCl3 and aqueous NaOH at 343 K, the electrophile attacking the ring is:

a) CHCl3

b) CHCl2

c) CCl2

d) COCl2

Answer: CCl2

3. Which of the following is most acidic?

a) Phenol

b) Benzyl alcohol

c) m-chlorophenol

d) cyclohexanol

Answer: m-chlorophenol

4. When Phenol is distilled with zinc dust, it gives

a) Benzene

b) Toluene

c) Benzaldehyde

d) Benzoic acid

Answer: Benzene

5. Which of the following cannot be made by using Williamson Synthesis:

a) Methoxybenzene

b) Benzyl p-nitrophenyl ether

c) tert. butyl methyl ether

d) Ditert. butyl ether

Answer: Ditert. butyl ether

6. Ethers are

a) Neutral

b) Basic

c) Acidic

d) Amphoteric

Answer: Basic

7. Among the following, the one which reacts most readily with ethanol is

a) p-Nitrobenzyl bromide

b) p-Chlorobenzyl bromide

c) p-methoxybenzyl bromide

d) p-methyl benzyl bromide.

Answer: p-methoxybenzyl bromide

8. tert-Butyl methyl ether on heating with HI gives a mixture of

a) tert-Butyl alcohol and methyl iodide.

b) tert-Butyl iodide and methanol

c) Isobutylene and methyl iodide

d) Isobutylene and methanol.

Answer: tert-Butyl iodide and methanol

9. An ether is more volatile than alcohol having the same molecular formula. This is due to

a) intermolecular hydrogen bonding in alcohols.

b) dipolar character of ethers

c) alcohols, having resonance structures

d) intermolecular hydrogen bonding in ethers.

Answer: intermolecular hydrogen bonding in alcohols.

10. Wood spirit is known as acetone

a) methanol

b) ethanol

c) acetone

d) benzene

Answer: methanol

11. The product of acid catalysed hydration of 2-phenylpropene is

a) 3-Phenyl-2-propanol

b) 1-Phenyl-2-propanol

c) 2-phenyl-2-propanol

d) 2-phenyl-1-propanol.

Answer: 3-Phenyl-2-propanol

12. Acid-cataylysed hydration of alkenes except ethene leads to the formation of

a) primary alcohol

b) secondary or tertiary alcohol

c) mixture of primary and secondary alcohols.

d) mixture of secondary and tertiary alcohols.

Answer: secondary or tertiary alcohol

13. During dehydration of alcohols to alkenes by heating with cone. H2SO4 the initial step is

a) formation of an ester

b) protonation of alcohol molecule

c) formation of carbocation

d) elimination of water

Answer: protonation of alcohol molecule

14. Which compound reacts with propene to form tripropyl borane?

a) Borane

b) Diborane

c) Boric acid

d) Sodium borohydride

Answer: Diborane

15. Which of the following is not required for the conversion of trialkyl borane to an alcohol?

a) Diborane

b) Water

c) Sodium hydroxide

d) Hydrogen peroxide

Answer: Diborane

16. What happens when an aldehyde is treated with lithium aluminium hydride?

a) Primary alcohol is formed

b) Secondary alcohol is formed

c) Tertiary alcohol is formed

d) No reaction

Answer: Primary alcohol is formed

17. Which carbonyl compound yields secondary alcohols when treated with LiAlH4?

a) Aldehyde

b) Ketone

c) Carboxylic acid

d) Ester

Answer: Ketone

18. Hydrolysis of the adduct formed form the reaction of ________ with methyl magnesium bromide gives 2-Methylpropan-2-ol.

a) Methanal

b) Ethanal

c) Propanal

d) Propanone

Answer: Propanone

19. Which of the following aldehydes can produce 1o alcohols when treated with Grignard reagent?

a) Methanal

b) Ethanal

c) Propanal

d) Butanal

Answer: Methanal

20. How are alcohols prepared from haloalkanes?

a) By treating with concentrated H2SO4

b) By heating with aqueous NaOH

c) By treating with a strong reducing agent

d) By treating with Mg metal

Answer: By heating with aqueous NaOH

21. Which of the following process do not yield alcohols?

a) Acid catalysed hydration of alkenes

b) Hydroboration-oxidation of alkenes

c) Reduction of aldehydes

d) Free radical halogenation of alkanes

Answer: Free radical halogenation of alkanes

22. Identify the catalyst in the hydration of alkenes to produce alcohols.

a) HCl

b) FeCl3

c) Pt

d) Ni

Answer: HCl

23. Phenol can be obtained by ________ of sodium phenoxide.

a) acidification

b) oxidation

c) sulphonation

d) hydrolysis

Answer: acidification

24. Cumene hydroperoxide on hydrolysis with dilute H2SO4 gives _________

a) alcohol and phenol

b) only phenol

c) phenol and acetone

d) alcohol and acetone

Answer: phenol and acetone

25. How is carbolic acid prepared from benzene diazonium chloride?

a) Treating it with nitrous acid at 275K

b) Preparing an aqueous solution and warming it

c) Treating it with sodium hydroxide

d) Freezing it

Answer: Preparing an aqueous solution and warming it

26. Which of the following isomeric alcohols is the most soluble in water?

a) n-Butyl alcohol

b) Isobutyl alcohol

c) sec-Butyl alcohol

d) tert-Butyl alcohol

Answer: tert-Butyl alcohol

27. Which of the following is the least soluble in water?

a) n-Butyl alcohol

b) n-Pentyl alcohol

c) n-Hexyl alcohol

d) n-Heptyl alcohol

Answer: n-Heptyl alcohol

28. Which of the following is necessary for the bromination of phenol?

a) CS2

b) FeBr3

c) AlCl3

d) BF3

Answer: CS2

29. Phenol is approximately how much times acidic than ethanol?

a) 10

b) 25

c) 100

d) million

Answer: million

30. Phenols are not soluble in which of the following?

a) Water

b) Alcohol

c) Ether

d) Sodium hydroxide

Answer: Water

31. What is the correct order of boiling points of alcohols having the same number of carbon atoms?

a) 1°>2°>3°

b) 3°>2°>1°

c) 3°>1°>2°

d) 2°>1°>3°

Answer: 1°>2°>3°

32. Four compounds A, B, C and D having similar molecular masses were tested for their boiling points. It was found that compound C has the highest boiling point of all four. What is the compound C most likely to be?

a) Hydrocarbon

b) Haloalkane

c) Alcohol

d) Ether

Answer: Alcohol

33. If the boiling point of methoxymethane is 248K, predict the boiling point of ethanol.

a) 231K

b) 248K

c) 351K

d) 455K

Answer: 351K

34. Which of the following has the highest boiling point?

a) Propan-1-ol

b) Butan-1-ol

c) Butan-2-ol

d) Pentan-1-ol

Answer: Pentan-1-ol

34. Which of the following is not a polyhydric alcohol?

a) Cyclohexanol

b) Ethylene glycol

c) Propylene glycol

d) Benzene-1,2-diol

Answer: Cyclohexanol

36. Which of the following is an incorrect name for the compound with aromatic ring having hydroxyl groups at para positions?

a) Hydroquinone

b) Benzene-1,4-diol

c) Resorcinol

d) Quinol

Answer: Resorcinol

37. What is the common name of the simplest hydroxy derivative of benzene?

a) Phenol

b) Cresol

c) Cyclohexanol

d) Glycerol

Answer: Phenol

38. Which of the following phenols is not dihydric?

a) p-Cresol

b) Catechol

c) Resorcinol

d) Quinol

Answer: p-Cresol

39. According to IUPAC, what is the suffix used for naming alcohols?

a) -al

b) -ol

c) -one

d) -OH

Answer: -ol

40. Which of the following compounds contain an aryl carbon?

a) Ethanol

b) Benzyl alcohol

c) Vinyl alcohol

d) Phenol

Answer: Phenol

Alcohol Phenol And Ether MCQs PDF Download

FAQs on Alcohol Phenol And Ether

What are the uses of alcohol phenol and ether?

Alcohols are the precursor compounds to phenols that are used in the formation of laundry detergents. Ethers and phenols can be used to aerosol antibacterial products, while alcohol is commonly used in cleaning fluids, cosmetics and pharmaceuticals.

Is alcohol a ether?

Ethers and alcohols might seem like they’re worlds apart, but they’re actually quite similar in structure. That’s because ethers and alcohols both have the same oxygen-hydrogen (O-H) bond arrangement as water.

Does phenol react with alcohol?

Phenol reacts with alcohols to give a mixture of C- and 0-alkylated products under the same reaction conditions. 0-alkylation and C-alkylation are parallel reactions.

Is phenol and alcohol same?

Phenols also contain a hydroxyl group linked directly to a ring. The difference between a phenol and an alcohol is that the oxygen-hydrogen of an alcohol is attached to carbon in the main chain, whereas in phenol it is directly linked to the ring. And the ring in phenol is aromatic, while it is not in alcohols.

What are the uses of alcohol?

Alcohol with a low concentration of methanol or ethanol can be used as a fuel. By itself it is nearly useless, but when mixed with gasoline (petrol) it can make the fuel burn cleaner (similar to how leaded petrol worked in the past to make combustion more efficient). Of course this is only practical if the alcohol is cheaper than the gasoline or other fuels, because you are essentially storing fuel in your tank instead of using it at the same time.