MDCAT XII Chemistry Aldehyde & ketone +Carboxylic Acid Online Test-2

Instructions for MDCAT XII Chemistry Aldehyde & ketone + Carboxylic Acid Online Test-2:

Most Important: Please wait a few seconds after clicking the see results/ test submit button. Don’t double-click or refresh the page.
Open in Chrome browser (recommended)
Don’t refresh the page during the test
This free online test will remain open for the whole mdcat session.
Your score will be shown on the screen after you submit the test
You can attempt the test anytime, anywhere
Join our WhatsApp Group: Click here
For Any Information, contact us via our Facebook Page

Test Details:

Subject: Chemistry
Class: 2nd year or 12
Chapter Name: Aldehyde & ketone + Carboxylic acid
Test: MDCAT 2025
Book: Sindh Textbook
Total No. Of MCQS: 50 MCQS
Time Allowed: 50 Minutes
Price: Free

Privacy Notice: Your name may appear on the leaderboard. If you are concerned about this, you may choose not to use your real name.

156

Created on May 01, 2025 By

medicoengineer.com

MDCAT XII Chemistry Aldehyde & ketone + Carboxylic Acid Online Test-2

Advertisements

Please Note: If You think the question is wrong or mistyped, the Question Key is wrong or out of syllabus, Feel free to comment or Contact with our team, our team will verify the question. For Contact details Please Visit the Contact Us page or email us at Contact@medicoengineer.com .

If you have any suggestion about our free test series you are also welcome to contact with us , we will appreciate you.

Best Of luck MDCAT Aspirants.

NameEmailPhone Number

1 / 50

1. Which is the stronger base?

a) CH₃COOH

b) CH₃–CH₂–COOH

c) HCOOH

d) CH₃–CH₂–CH₂–COOH

2 / 50

2. When alcohol reacts with a carboxylic acid in the presence of H₂SO₄, the product is:

a) Ethyl ethanoate

b) Ethanamide

c) Ethane

d) Ethanoic anhydride

3 / 50

3. P₄O₁₀ acts as a:

a) Oxidizing agent

b) Reducing agent

c) Dehydrating agent

d) Base

4 / 50

4. What is the angle between the carbonyl C=O bond and the bond between the carbonyl carbon and the atom connected to it?

a) 60°

b) 90°

c) 120°

d) 135°

5 / 50

5. Find the acid-catalyzed nucleophilic addition reaction:

a) With HCN

b) With RMgX

c) With H₂O

d) None of these

6 / 50

6. Which has the lowest pKa value?

a) CH₃COOH

b) C₆H₅OH

c) C₂H₅OH

d) H₂O

7 / 50

7. When benzene is oxidized with KMnO₄, it produces:

a) Benzoic acid

b) Toluene

c) Phenol

d) None of these

8 / 50

8. The hydrocarbon derivative of carboxylic acid is:

a) Acetic anhydride

b) Ether

c) Ketone

d) None of these

9 / 50

9. Aldehyde can be identified by:

A.Tollens' reagent

B.Oxidation with KMnO₄

C. Fehling's solution

a) A, B

b) A, B, C

c) A, C

d) A only

10 / 50

10. The oxidizing agent in Clemmensen reduction is:

a) N₂H₄/KOH/ethylene glycol

b) Zn-Hg/HCl (conc.)

c) Zn/HCl

d) None of these

11 / 50

11. The pKa value of formic acid is:

a) 5

b) 4

c) 6

d) 7

12 / 50

12. C₄H₆O₅ is the formula of:

a) Maleic acid

b) Tartaric acid

c) Acetic acid

d) None of these

13 / 50

13. Which of the following is used as an animal feed additive and prevents mold growth?

a) Acetic acid

b) Propionic acid

c) Formic acid

d) Butyric acid

14 / 50

14. Which of the following tests is not given by aldehydes?

a) 2,4-DNPH

b) Tollens' test

c) . Sodium nitroprusside test

d) . NaHSO₃

15 / 50

15. When we use NaBH₄ to convert carboxylic acid, it forms:

a) Alkane

b) Alcohol

c) Aldehyde

d) None of these

16 / 50

16. Aslam was good at chemistry. He accidentally performed some new reactions to produce new products. If he added some HCl to carboxylic acid, the product would be:

a) Acid halide

b) Alkyl halide

c) Acetic anhydride

d) None of these

17 / 50

17. Saba has a small amount of isopropyl alcohol and 100 moles of H₂SO₄ and KMnO₄. What might be the product?

a) Propanone

b) Propanoic acid

c) Formic and acetic acid

d) Reaction will stop at the initial point

18 / 50

18. If someone is losing their beauty due to excessive radiation during summer, what type of acid might a dermatologist recommend?

a) HOC₅H₆COOH

b) HOC₆H₄COOH

c) HOC₅H₄COOH

d) HOC₆H₅COOH

19 / 50

19. . Aldehyde combines with ethanol in the presence of HCl to produce:

a) Alkane

b) Acetal

c) . Carboxylic acid

d) . Ketone

20 / 50

20. The color of formic acid is:

a) Red-brown

b) Yellow-brown

c) Light brown

d) Colourless

21 / 50

21. If I drop some acetic acid into benzene, the mass of acetic acid will be:

a) 60 amu

b) 90 amu

c) 120 amu

d) 180 amu

22 / 50

22. Total number of sp³ hybridized carbon atoms in caproic acid:

a) 5

b) 6

c) 4

d) 3

23 / 50

23. Cannizzaro’s reaction is not given by:

a) Formaldehyde

b) Trichloroacetaldehyde

c) . Benzaldehyde

d) . Acetaldehyde

24 / 50

24. Which of the following is a Greek derivative?

a) Formic acid

b) Propionic acid

c) Butyric acid

d) Caproic acid

25 / 50

25. The formula of an anhydride is:

a) RCO₂O

b) RCO₂R

c) (RCO)₂O₂

d) (RCO)₂O

26 / 50

26. Acetic acid is found in:

a) Ants

b) Vinegar

c) Goat

d) Butter

27 / 50

27. Alkane nitrile can be produced by _______ hydrolysis of RCOOH:

a) Base

b) Acid

c) Neutral

d) None

28 / 50

28. . When aldehyde reacts with Tollens’ reagent:

a) . Ketone is produced

b) Silver is oxidized

c) . Alcohol is produced

d) None of these

29 / 50

29. Formalin contains what percentage of substances other than formaldehyde?

a) 37 to 40%

b) 37 to 40%

c) 50 to 60%

d) 63 to 60%

30 / 50

30. PCC is an:

a) Oxidizing agent

b) Activating agent

c) Reducing agent

d) Catalyst

31 / 50

31. . Which of the following is used as an ink preservative?

a) . Alcohol

b) Ether

c) Ester

d) . Phenol

32 / 50

32. Akhtar smells a propane bottle. What type of gesture does he display?

a) Nervous

b) Relaxed

c) Smiling

d) No effect on his gesture

33 / 50

33. Reactions given by aldehydes include:

a) Reduction

b) Polymerization

c) Oxidation

d) All of these

e) All except B

34 / 50

34. . Which of the following is most reactive?

a) Formaldehyde

b) Acetaldehyde

c) . Benzaldehyde

d) Propanone

35 / 50

35. When NH₂OH reacts with an aldehyde or ketone, it produces:

a) Cyanohydrin

b) Oxime

c) Alkane

d) No reaction

36 / 50

36. If a ketone is mixed with Fehling's solution, the color of the solution is:

a) Red

b) Blue

c) Yellow

d) Reddish-brown

37 / 50

37. Identify the mixed ketone:

a) Acetone

b) Diethyl ketone

c) . Benzophenone

d) . Acetophenone

38 / 50

38. Find the acid-catalyzed nucleophilic addition reaction:

a) With HCN

b) With RMgX

c) With H₂O

d) None Of these

39 / 50

39. . By the oxidation of ketone with chromic acid, _______ is produced:

a) . Carboxylic acid

b) Secondary alcohol

c) . Alkane

d) None of these

40 / 50

40. Hydrolysis of nitrile produces:

a) Carbolic acid

b) Ester

c) RCOOH

d) None of these

41 / 50

41. The formula of citric acid is:

a) C₆H₈O₇

b) C₆H₈O₆

c) C₆H₇O₈

d) C₆H₈O₈

42 / 50

42. The general formula of carboxylic acid is:

a) CnH₂nO

b) CnH₂n

c) . CnH₂nO₂

d) . CnH₂n+₂O

43 / 50

43. Find the functions of methanal:

Preservation of biological specimens
Direct preparation of acetic acid
Silvering of mirrors
Manufacturing of Bakelite

a) 1, 2, 3, 4

b) 2, 3, 4

c) 1, 3, 4

d) 3, 4

44 / 50

44. Which of the following is the least reactive?

a) Acetaldehyde

b) Di-tert-butyl ketone

c) Di-isopropyl ketone

d) Butanone

45 / 50

45. . Identify the compound: CH₃–CH=CH–CHO

a) But-2-enal

b) Ethane

c) . But-2-ene

d) Buten-2-al

46 / 50

46. When aldehyde and Fehling’s solution mix, they form Cu₂O. The color of cuprous oxide is:

a) Red

b) Brown

c) Reddish-brown solution

d) None of these

47 / 50

47. In base-catalyzed reactions of carbonyl compounds, the base:

a) Increases the nucleophilic character of the reagent

b) Increases the electrophilic character of the carbonyl compound

c) Increases the acidic character of the reagent

d) Both A and B

48 / 50

48. Which of the following substances is the least water-soluble?

a) Methanal

b) Pentanal

c) Propanone

d) Ethanal

49 / 50

49. The general formula of aldehyde is:

a) . CnH₂nO₂n

b) . CnH₂n

c) . CnH₂nO

d) CnH₂nOₙ₊₁

50 / 50

50. Which of the following has the most pleasant smell?

a) Formic acid

b) Acetic acid

c) Propanoic acid

d) Butyric acid

Your score is

Leaderboard

Rank	Name	Score (%)
1	Najaf Umrani	100%
2	Har Har Mahadev	98%
3	K	96%
3	Huzaima khan	96%
4	AS	90%
5	Shhhh	82%
6	Danish	80%
6	madiha	80%
7	O	78%
8	Pooran dev Rathi	76%
8	Bhawana Kumari	76%
9	U	74%
9	Ayesha	74%
9	Jaipalsingh	74%
10	Ali	72%
10	anonymous	72%
11	Ahmad	70%
11	Sagar	70%
11	Waris	70%
12	T	68%
12	M Mairaj	68%
12	Varoon	68%
12	Ashok	68%
12	Khushboo	68%
13	Rahul	66%
13	Abdullah	66%
13	Khuzaima khan	66%
14	areeba	64%
14	Mahnoor	64%
14	d	64%
14	Sameer	64%
14	Muskan panhwer	64%
14	Amna	64%
14	Iftikhar Hussain	64%
14	Suresh	64%
15	vohra	62%
15	alia	62%
15	Mukti	62%
15	Doulat Singh	62%
15	Kd	62%
16	Abdul Ahad	60%
16	Ibrar	60%
16	Kalpna Rathore	60%
16	Sagar Chohan	60%
16	Shanza Hamid	60%
16	Dr paradox	60%
17	Manesha	57%
17	harika	57%
17	Najaf	57%
17	Sahar	57%

MDCAT XII Chemistry Aldehyde & ketone +Carboxylic Acid Online Test-2

Instructions for MDCAT XII Chemistry Aldehyde & ketone + Carboxylic Acid Online Test-2:

Test Details:

Quick Links

Help

Recent Posts

Instructions for MDCAT XII Chemistry Aldehyde & ketone + Carboxylic Acid Online Test-2:

Test Details:

Related Posts

Quick Links

Help

Recent Posts