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12 Class CHEMISTRY CHAPTER NO.12 ALDEHYDES AND KETONES Online Quiz MCQs Test

GRADE 12 – CHEMISTRY – CHAPTER NO. 12 – ALDEHYDES AND KETONES – Online MCQs Board, MDCAT, UHS, PMC & ECAT Exam Preparation

CHEMISTRY – 2nd Year
Chapter Name : ALDEHYDES AND KETONES
Chapter No. 12
Multiple Choice Questions
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.








Book Name :  CHEMISTRY
Chapter No.  12
Chapter Name : ALDEHYDES AND KETONES
Total MCQ from Text Book :  45 
Book Version  :
2022

Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade  : 12 ( F.Sc. Intermediate)
Total Marks : 45
Total Time :   45 minutes




10

GRADE 12 - CHEMISTRY - CHAPTER NO. 12 - ALDEHYDES AND KETONES

GRADE 12 - CHEMISTRY - CHAPTER NO. 12 - ALDEHYDES AND KETONES

1 / 45

The carbon atom of carbonyl group (MTN, LHR 2017) (E3WP, RWP, FSD 2019)

2 / 45

Connizzaro's reaction is given by: (LHR 2016 GII) (GRW 2018)

3 / 45

Which of the following compounds will give iodoform test on treatment with aqueous NaOH/I2

4 / 45

Which of the following compounds not give iodoform test on treatment with I2 / NaOH

5 / 45

Brick red precipitates are formed when aldehydes react with (UHS 2010)

6 / 45

Aldehydes and ketones react with 2, 4 dinitrophenyl hydrazine solution to give precipitate of the colour: (LHR 2016)

7 / 45

Addition of alcohol in carbonyl compounds gives acetal, the geometry of acetal is (BWP, LHR 2011)

8 / 45

Ketones are prepared by oxidation of: (RWP, MTN 2017 GII) (SWL 2018)

9 / 45

Silver mirror test is given by: (BWP 2014)

10 / 45

Methyl ketones are characterized by: (FSD 2015)

11 / 45

Dry distillation of a mixture of calcium salts of formic acid and acetic acid results into the formation of (UHS 2010)

12 / 45

Ketones are prepared by the oxidation of (RWP 2015, 2017) (MTN 2017) (SWL 2018) (DGK 2019 GII)

13 / 45

The compound used in the processing of anti-polio vaccine is: (SWL 2014)

14 / 45

Formalin is (GRW 2014) (LHR 2018)

15 / 45

Which one of the following reagents is used to distinguish between aldehydes and ketones? (UHS 2018)

16 / 45

The carbon atom of a carbonyl group is. (GRW 2015) (LHR 2016) (MTN 2018) (RWP, FSD 2019)

17 / 45

Which one of the following test is given by both aldehyde and ketone? (UHS 2015)

18 / 45

Compounds having - C ≡ N group are called (UHS 2017)

19 / 45

The compound which does not give iodoform test: (MTN 2011)

20 / 45

The reaction of aldehydes and ketones with ammonia deriative (G-NH2) to form compounds with the group > C = N-G and water is known as_____ reaction (UHS 2017)

21 / 45

Which of the following reagent will react with both aldehydes and ketones: (AJK, GRW 2019 G11)

22 / 45

Consider the following reaction: R - CHO + 2[Ag(NH3)2]OH → R-COONH4 + 2Ag + 2NH3 + H2O This reaction represents one of the following tests. (UHS 2011)

23 / 45

Aidol product on heating undergoes: (GRW 2015)

24 / 45

Methyl ketones are characterized by: (SGD 2011)

25 / 45

Following is an aromatic aldehyde: (MTN 2014)

26 / 45

Which one of the following reacts with Tollen's reagent: (LHR, GRW 2015 GII) (AJK 2018) (LHR 2019 GII)

27 / 45

Which of the following has the highest boiling point? (LHR 2017, 2019) (AJK 2017) (BWP 2018) (SWL, MTN, GRW 2019)

28 / 45

Acetone reacts with IICN to form cyanohydrin. It is an example of: (FSD 2017) (BWP 2019)

29 / 45

Which mechanism of reactions is hsown by carbonyl compounds? (UHS 2018)

30 / 45

Formalin is a solution of formaldehyde in water (SGD, LHR 2018 GII)

31 / 45

Cannizzaro's reaction is not given by: (BWP 2015) (RWP, GRW 2018) (DGK 2018(SGD 2017,2018,2019 GIl)

32 / 45

Which one of the following is also called silver mirror test? (UHS 2015)

33 / 45

Which compound will not give iodoform test on treatment with 12 NaOH? (FSD 2019 GIl)

34 / 45

Why is it necessary to distill aldehyde from oxidation of primary alcohol through actified potassium dichromate (VI) solution or actified sodium dichromate(VI) solution (UHS 2018)

35 / 45

Acidified oxidizing agent for the laboratory preparation of acetaldehyde is: (AJK 2015)

36 / 45

Ketones are always reduced to: (RWP, BWP 2015, 2016) (DGK 2016)

37 / 45

Acetone reacts with HCN to form a cyanohydrin. It is an example of. (SGD 2015) (LHR 2015) (FSD, BWP 2017, 2019 GII)

38 / 45

Hydrolysis of cyano group by an aqueous acid results into (UHS 2010)

39 / 45

Which one of the following is an appropriate indication of positive iodoform test? (UHS 2016)

40 / 45

Which of the following will have the highest water boiling point? (BWP 2015) (DGK 2017) (SWL 2015, 2019) (LHR 2017, 2019) (MTN 2019 GI, II)

41 / 45

Cannizzaro's reaction is not given by: (MTN 2016) (SGD, RWP, DGK 2018) (DGK, SGD 2019 Gil)

42 / 45

CH3CN + HCL → A + B (in the presence of water) In the reaction, A and B are (UHS 2011)

43 / 45

Which will react with Fehling's solution? (SGD 2019)

44 / 45

Which of the following reagents will react with both aldehydes and ketones?

45 / 45

Formation of acetaldehyde from ethanol is known as: (LHR 2016)

Your score is

The average score is 49%

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