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

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

Question # 2

Acetaldehyde is used to make

Question # 3

Chromyl chloride and toluene react to produce

Question # 4

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

Question # 5

Which reaction yields Bakelite?

Question # 6

Benzophenone can be converted into benzene using

Question # 7

Ketones are prepared by the oxidation of

Question # 8

Which of the following gives iodoform on heating with a solution of I2containing Na2CO3?

Question # 9

Ketones are prepared by the oxidation of:

Question # 10

Which reagent will distinguish a ketone from an aldehyde

Question # 11

Which reaction is of condensation or addition elimination reaction?

Question # 12

Silver mirror test is applied for

Question # 13

Dehydration of allcohol gives:

Question # 14

Which of these reactions is shown by buranone, CH3COCH2CH3

Question # 15

Self condensation of acetaldehyde in the presence of dilute alkalies gives

Question # 16

Which alcohol may be oxidised to a product which react with 2,4-dinitorphenylhydrazine reagent but not with Fehling's reagent

Question # 17

Which compound on reaction with hydrogen cyanide produces a compound with a chiral centre

Question # 18

Aledehydes ketones can be prepared form alcohols by their:

Question # 19

Which of the following does not react with phenyl hydrazine?

Question # 20

The color of ppts formed by Fehling's test is

Question # 21

When vapours of isopropyl alcohol are passed over heated copper, the major product obtained is

Question # 22

Give IUPAC name fo Acetone

Question # 23

Cannizzaro reaction is not given by

Question # 24

Ketons are prepared by the oxidation of

Question # 25

In Tolten's best, the end product is ______ formed

Question # 26

Acetone is prepared by

Question # 27

Formaldehyde is used to make

Question # 28

Iodoform test is given by:

Question # 29

Aromatic aldehydes undergo disproportionation in presence of sodium or potassium hydroxide to give corresponding alcohol and acid. The reaction is known as

Question # 30

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?

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

  • T
    TETO Teto 13 - Mar - 2023 02 Min 50 Sec 115/120
  • 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

ECAT Chemistry Chapter 23 Important MCQ's

Sr.# Question Answer
1 The colour of ppts formed by Fehling's test is
A. Brick red
B. Red
C. Yellow
D. Orange
2 When vapours of isopropyl alcohol are passed over heated copper, the major product obtained is
A. Propane
B. Propylene
C. Acetaldehyde
D. Acetone
3 Silver mirror test is applied for
A. Aldehydes
B. Alcohols
C. Acids
D. Esters
4 Which compound would undergo nucleophilic addition
A. Ethene, C2H4
B. Bromoethane, C2H5Br
C. Ethanal, CH3CHO
D. Ethane, C2H6
5 Which of the following in incorrect?
A. FelCl3is used in the detection of phenols
B. Fehling solution is used in the detection of glucose
C. Tollen's reagent is used in detection of unsaturation
D. NaHSO3is used in the detection of carbonyl compounds
6 In formadaldehyde and KOH are heated then we get
A. Acetylene
B. Methane
C. Methyl alcohol
D. Ethyl formate
7 Isopropyl alcohol on oxidation forms
A. Acetone
B. Ether
C. Ethylene
D. Acetaldehyde
8 The homologous series of aldehydes and ketones have general formula:
A. CnH2nO
B. CnHnO
C. CnH2n-1O
D. CnHnOn
9 Dehydration of allcohol gives:
A. Alkane
B. Alkene
C. Aldehyde
D. ketone
10 Which one of the following statement is wrong regarding differences between aldehydes and ketones
A. Aldehydes undergo reduction to form primary alcohols while ketones undergo reduction to form secondary alcohols
B. Aldehydes undergo oxidation to form acids having less number of carbon atoms while ketones undergo oxidation to form acids having same number of carbon atoms
C. Aldehydes give positive silver mirror test while ketones give negative -mirror test
D. Aldehydes can undergo polymerization while ketones cannot undergo polymerizarion

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!