MDCAT XII Chemistry Alcohol Phenol and Ether Online Test-2

Instructions for MDCAT XII Chemistry Alcohol Phenol and Ether Online Test-2:

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Test Details:

Subject: Chemistry
Class: 2nd year or 12
Chapter Name: Alcohol Phenol and Ether
Test: MDCAT 2025
Book: Sindh Textbook
Total No. Of MCQS: 50 MCQS
Time Allowed: 50 Minutes
Price: Free

Created on April 26, 2025 By

medicoengineer.com

MDCAT XII Chemistry Alcohol Phenol and Ether Online Test-2

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NameEmailPhone Number

1 / 50

1. Ether was first synthesized in:

a) Mid eighteenth century

b) Mid seventeenth century

c) Mid fifteenth century

d) Mid sixteenth century

2 / 50

2. The boiling point of isopropyl alcohol is:

a) 97.2°C

b) 117.7°C

c) 82.6°C

d) 107.89°C

3 / 50

3. pKa value of 2-propanol:

a) 15.5

b) 16.3

c) 15.9

d) 17

4 / 50

4. Which of the following is correct?

a) Formaldehyde converts to alcohol with Grignard reagent on hydrolysis, having OH in a concentrated medium.

b) Formaldehyde with R-MgBr or R-Li converts to primary alcohol.

c) A and B

d) None of these

5 / 50

5. Oxidation of a tertiary alcohol produces:

a) Aldehyde

b) Ketone

c) Carboxylic acid

d) None of these

6 / 50

6. Order of reactivity of alcohol with Na is:

a) 3 > 2 > 1

b) 1 > 3 > 2

c) 3 > 1 > 2

d) 1 > 2 > 3

7 / 50

7. Colour and formula of the compound which reacts with ethylene glycol to produce 2 molecules of formaldehyde:

a) White, HIO₃

b) Purple, HIO₃

c) White, HIO₄

d) Purple, HIO₄

8 / 50

8. Phenol is known as:

a) Carbolic acid

b) 2-hydroxybenzene

c) Benzenal

d) A and C

9 / 50

9. Pure phenol is a white solid. Because of _______ its colour changes, and the new colour is _______.

a) Reduced product, pink

b) Reduced product, red

c) Oxidized product, red

d) Oxidized product, pink

10 / 50

10. Due to which process is phenoxide more stable than ethanoxide?

a) Inductive effect

b) Resonance effect

c) Screening effect

d) Delocalization of π-electrons

11 / 50

11. When chlorobenzene reacts with NaOH, the product is:

a) Phenol

b) Benzene

c) Sodium phenoxide

d) Catechol

12 / 50

12. When the OH part of phenol takes part in a reaction, it produces:

Ester
Salt
Benzene

a) 1,2,3

b) 1,3

c) 2,3

d) 1,2

13 / 50

13. Colour of picric acid is _____ and it is explosive in ______ form.

a) White, hydrous form

b) Yellow, dry form

c) White, dry form

d) Yellow, hydrous form

14 / 50

14. Formula of benzoquinone:

a) C₆H₇O₂

b) C₆H₆O₂

c) C₆H₄O₂

d) C₆H₅O₃

15 / 50

15. Charge on the coordination sphere of the product of phenol and FeCl₃ is:

a) +3

b) –2

c) –3

d) +2

16 / 50

16.

Arrange the following according to the bond angle:

a) C₂H₆O > C₆H₆O >CH₃OH > H₂O

b) H₂O > CH₃OH > C₆H₆O > C₂H₆O

c) CH₂O > C₆H₆O > C₂H₆O > CH₃OH

d) C₂H₆O > C₆H₆O > H₂O > CH₃OH

17 / 50

17. Find the substance which does not react with K:

a) Ethanol

b) Methoxymethane

c) Carbolic acid

d) All react with K

18 / 50

18. Reaction of periodic acid with 1 mole of 2,3-dihydroxy alcohol gives:

a) 1 mole of acetaldehyde

b) 1 mole of ketone and 1 mole of acetaldehyde

c) 1 mole of ketone

d) 1 mole of ethanal and 1 mole of acetaldehyde

19 / 50

19. Which of the following is the most stable anion?

a) Methyl anion

b) Phenoxide anion

c) Carboxylate anion

d) Alkoxide

20 / 50

20. When phenol is treated with excess bromine water, it gives:

a) m-Bromophenol

b) o- and p-Bromophenol

c) 2,4-Dibromophenol

d) 2,4,6-Tribromophenol

21 / 50

21. Phenol is less acidic than:

a) Acetic acid

b) p-Methoxyphenol

c) p-Nitrophenol

d) Ethanol

e) A and C

22 / 50

22. On heating an aqueous solution of benzene diazonium chloride, which of the following is formed?

a) Benzene

b) Chlorobenzene

c) Phenol

d) Aniline

23 / 50

23. Sodium benzene sulphonate reacts with NaOH and then, on acidic hydrolysis, it gives which of the following compounds?

a) Phenol

b) Benzoic acid

c) Benzene

d) Disodium benzaldehyde

24 / 50

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

a) Acidification

b) Oxidation

c) Sulphonation

d) Hydrolysis

25 / 50

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

26 / 50

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

27 / 50

27. 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 compound C most likely to be?

a) Hydrocarbon

b) Haloalkane

c) Alcohol

d) Ether

28 / 50

28. Which of the following is the most suitable requirement for the dehydration of ethanol to form an ether?

a) Sulphuric acid at 413k

b) Sulphuric acid at 443k

c) Sodium hydroxide at 413k

d) Sodium hydroxide at 413k

29 / 50

29. Which of the following is not favourable for the proper dehydration of alcohol to form ether?

a) Good temperature control during the reaction

b) Excess of alcohol

c) Presence of protic acids

d) Presence of bulky alkyl groups in the alcohol

30 / 50

30. Sodium methoxide on heating with bromoethane gives __________.

a) Methoxymethane

b) Methoxyethane

c) Ethoxyethane

d) Diethyl ether

31 / 50

31. Which of the following is a dialkyl or diaryl derivative of water?

a) Phenol

b) Alcohol

c) Ether

d) Ester

32 / 50

32. The compound used as an anaesthetic agent is:

a) Acetone

b) Ethylamine

c) Ethanol

d) Ethoxyethane

33 / 50

33. The bond angle of ether is greater than other water derivatives because of:

a) Greater repulsion of lone pairs

b) Internal repulsion

c) External attraction

d) Inductive effect

34 / 50

34. Reaction of phenol with bromine in the presence of an inert solvent produces:

a) 2,4,6-tribromophenol

b) 3-bromophenol

c) 2-bromophenol

d) None of these

35 / 50

35. Dow’s process is used to prepare phenol by using:

a) Sodium phenoxide

b) Chlorophenol

c) Benzene sulphonic acid

d) Chlorobenzene

36 / 50

36. Phenol on reaction with HNO₃ (having less proportion than solvent) produces:

a) Picric acid

b) Meta-nitrophenol

c) Ortho-nitrohydroxybenzene

d) None of these

37 / 50

37. The formula of diazonium salt is:

a) N₃Cl

b) NCl₂

c) N₂Cl

d) NCl₃

38 / 50

38. Reduction of an aldehyde produces:

a) Secondary alcohol

b) Tertiary alcohol

c) Primary alcohol

d) Carboxylic acid

39 / 50

39.

Methanol is also known as:

a) Wood solid

b) Distilled liquid

c) Methyl alcohol

d) None of these

40 / 50

40. The test for identification of phenol is:

a) Sodium test

b) Bromine CCl₄ test

c) Ester test

d) None of these

41 / 50

41. Lucas reagent is:

a) HCl + ZnCl

b) H₂SO₄

c) HgSO₄ and H₂SO₄

d) None of these

42 / 50

42. Which of the following is a primary alcohol?

a) 2-Propanol

b) 2-Butanol

c) Ethanol

d) Tert-butano

43 / 50

43. Which compound is more acidic?

a) Ether

b) Ether

c) Phenol

d) Alkane

44 / 50

44. Which functional group is present in ether?

a) -COOH

b) -OH

c) -O-

d) -CHO

45 / 50

45. What is the general formula of alcohol?

a) R-O-R

b) R-OH

c) R-COOH

d) R-CHO

46 / 50

46. The compound undergo electrophilic substitution rapidly is:

a) nitrobenzene

b) methoxy benzene

c) hydroxy benzene

d) chlorobenzene

47 / 50

47. Williamson synthesis product is:

a) alcohol

b) ether

c) phenol

d) Rx

48 / 50

48. Which of the following is more acidic in nature?

a) ROH

b) RCOOR

c) RCOOH

d) Phenol

49 / 50

49. Reduction of ketone generates:

a) primary alcohol

b) sec alcohol

c) Tertiary alcohol

d) carboxylic acid

50 / 50

50. Choose the derivative of H2O

a) Ether

b) phenol

c) ROH

d) All of these

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Instructions for MDCAT XII Chemistry Alcohol Phenol and Ether Online Test-2:

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