ECAT Pre Engineering Chemistry Chapter 23 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 23 Aldehydes and Ketones

Try The MCQ's Test For ECAT Chemistry Chapter 23 Aldehydes and Ketones

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Chemistry Chapter 23 Aldehydes and Ketones

00:00
Question # 1

Which of the following is a method of converting a unsaturated ketone into unsaturated hydrocarbon?

Question # 2

Acetone reacts with HCN to form a cyanohydrin. It is an example of:

Question # 3

Which of the following will have the highest boiling point

Question # 4

An organic compound has the following properties ; It gives a positive tri-iodomethane test; it gives a yellow ppt, with 2, 4-DNP regent; it does not react with Tollen's reagent . Which compound would give these results

Question # 5

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

Question # 6

In 1903 Arthur Lapeworth became the first chemist to investigate a reaction mechanism. The reaction he investigated was that of hydrogen cyanide with propanone. What do we now call the mechanism of this reaction

Question # 7

Which of the following does not react with phenyl hydrazine?

Question # 8

An organic compound 'A' has the molecular formula C3H6O, it undergoes iodoform test. When saturated with HCl it gives 'B' of molecular formula C9H14O. A and B, respectively are

Question # 9

Formaldehyde is used to make

Question # 10

Which reagent will distinguish a ketone from an aldehyde

Question # 11

Aledehydes ketones can be prepared form alcohols by their:

Question # 12

Which is used for the reduction of aldehydes and ketones

Question # 13

Which of the following compounds gives a ketone with Grignard's reagent?

Question # 14

Formalin is an aqueous solution of

Question # 15

Reduction with aluminium isopropoxide in excess of Isopropyl alcohol is called Meerwein Ponndroff-Verley reduction (MPV). What will be the final product when cyclohex-2-enone is selectively reduces in MPV reaction?

Question # 16

Which is not true about acetophenone?

Question # 17

In formadaldehyde and KOH are heated then we get

Question # 18

Which is mild oxidizing agent ?

Question # 19

Hydrogenation of bezoyl chloride in presence of Pd on BaSO4gives

Question # 20

Which reaction yields Bakelite?

Question # 21

Aniline reacts with which of these to form Schiff base?

Question # 22

Benzophenone can be converted into benzene using

Question # 23

Aldelydes are the oxidation product of

Question # 24

Hydroxyl amine is a derivative of::

Question # 25

Which of the following does not turn Schiff's reagent to pink?

Question # 26

Chromyl chloride and toluene react to produce

Question # 27

Which compound would undergo nucleophilic addition

Question # 28

Which isomer of C5H11OH gives, one dehydration, the greastest number of different alkenes

Question # 29

Iodoform test is given by:

Question # 30

Common names of aldehydes are given by corresponding:

Submit

Prepare Complete Set Wise ECAT Chemistry Chapter 23 Aldehydes and Ketones MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Chemistry Chapter 23 Aldehydes and Ketones MCQ`s Test

  • M
    M Umer Arain 10 - Dec - 2024 00 Min 27 Sec 110/120
  • M
    Mian araf Araf 16 - May - 2024 02 Min 13 Sec 110/120
  • F
    Farzand Shah Farzand Shah 24 - May - 2024 02 Min 44 Sec 110/120
  • J
    Jiya Khan 10 - Mar - 2024 07 Min 12 Sec 110/120
  • N
    Nasreen Sardar 13 - Jun - 2023 01 Min 36 Sec 105/120
  • M
    M Ahmad 12 - Mar - 2024 06 Min 24 Sec 85/120
  • Z
    Zaman Shehzad 24 - May - 2024 08 Min 02 Sec 80/120
  • H
    Hadi Fart 02 - Jun - 2024 10 Min 33 Sec 75/120
  • H
    hadia ejaz 31 - May - 2024 10 Min 57 Sec 75/120
  • H
    Huzaifa Asim 30 - May - 2024 00 Min 03 Sec 70/120
  • W
    Warisha Zehra 17 - Oct - 2023 05 Min 42 Sec 70/120
  • R
    Rabbia Munir 10 - Mar - 2024 06 Min 44 Sec 70/120
  • F
    Fariha Rani 17 - Jul - 2023 04 Min 46 Sec 65/120
  • M
    Mehreen Ather 23 - Dec - 2024 19 Min 27 Sec 65/120
  • F
    Fatima Sajid 29 - Jan - 2024 20 Min 34 Sec 65/120

ECAT Chemistry Chapter 23 Important MCQ's

Sr.# Question Answer
1 Silver mirror test is applied for
A. Aldehydes
B. Alcohols
C. Acids
D. Esters
2 Which reagent will distinguish a ketone from an aldehyde
A. Br2
B. 2, 4-dinitrophenylhydrazine
C. NaBH4
D. Tollen's reagent
3 Formaldehyde is used to make
A. Plastics
B. Medicine
C. Antiseptic
D. All of these
4 A nucleophilic reagent will readily Attack
A. Ethylene
B. Ethanal
C. Ethanol
D. Ethylamine
5
Question Image
6 Reaction of Grignard's reagent with formaldehyde gives:
A. pri-alcohol
B. sec-alcohol
C. ter-alcohol
D. carboxylic
7 Aldol condensation is actually
A. Electrophilic addition of carbonation
B. Electrophilic addition of carbonium ion
C. Nucleophilic addition of carbonation
D. Nuclephilic addition of carbonium ion
8 Which of the following compounds will react with reagent ?
A. CH3 CO H
B. CH3 CO CH3
C. CH3 COOH
D. CH3 CO CH2CH3
9 Aldehydes are oxidizes are to give:
A. Primary alcohol
B. Sec-alcohol
C. Ter-alcohol
D. Carboxylic acid
10 Which isomer of C5H11OH gives, one dehydration, the greastest number of different alkenes

Test Questions

Is this page helpful?