MDCAT Chemistry Chapter 17 MCQ Test With Answer for (Aldehydes and Ketones)

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MCQ's Test For MDCAT Chemistry Chapter 17 Aldehydes and Ketones Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 17 Aldehydes and Ketones Online Test

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MDCAT Chemistry Chapter 17 Aldehydes and Ketones Online Test

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Question # 1

Which of the following is a strong acid

Question # 2

An acid that exists as a cyclic dimer in benzene and shows a molar mass of 120g/mol is

Question # 3

In the esterification, first attack is due toon carborylic acid

Question # 4

Primany aleohols sornally give us aldehyde when oxidized in the presence of acidified Na2Cr2O7, what will be the product, when the secondary alcohols are oxidized in same condition?

Question # 5

The Complete oxidation of ethanol produces first Ethanal than

Question # 6

The derivatives that cannot be prepared directly from the acetie acid

Question # 7

Which of the following has the lowet solubility in water

Question # 8

Ethane nitrile can be converted into ethanoic acid through......intermediate

Question # 9

Slight oxidation of primary alcohol eives

Question # 10

When ethyl magnesium bromide is treated with carbon dioxide and the product hydrolyzed we get

Question # 11

Carboxylic acid is more acidic than phenol because of the greater stability of

Question # 12

Compound X & Y give effervesce with Na2CO3, solution. X gives a white ppt with ammonical AgNO3 while Y gives sweet smell compound on heating with alcohol X &Y are

Question # 13

The highest melting point is observed by

Question # 14

Reaction of acetic acid with LiAIH4 gives

Question # 15

Molar mass of formic acid in benzene comes out to be

Question # 16

Ester with raspberry flavor

Question # 17

Which one of the following reaction of carboxylic acid is reversible?

Question # 18

Estyl butyrate has flavour like

Question # 19

Final product of hydrolysis of nitrile is

Question # 20

Which of the following acid is unsaturated carboxylie acid

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Discus Alcohols with reference to:

a) Classification of alcohols into primary, secondary and tertiary.

b) Preparation of ethanol by hydration of ethene using conc. H2SO4 or conc. H3PO4

c) Reaction of alcohol with: i) K2Cr2O7 + H2SO4 (oxidation). ii) PCl5. iii) Na-metal. iv) Alkaline aqueous Iodine (Iodoform Test). v) Carboxylic acid (Esterification).

d) Dehydration of alcohol to give alkene.

Phenol

a) Discuss reactions of phenol with:

i) Bromine ii) HNO3

iii) NaOH

b) Explain the relative acidity of water, ethanol and phenol.

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MCAT Class Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 An acid that exists as a cyclic dimer in benzene and shows a molar mass of 120g/mol is
A. СН3СOOH
B. HCOOH
C. CI2CHCOOH
D. Сl3CCOOH
2 Octyl acetate has the flavor of
A. Orange
B. Pineapple
C. Banana
D. Apple
3 Final product of hydrolysis of nitrile is
A. Ketone
B. Alcohol
C. Aldehyde
D. Carboxylic acid
4 Which one of the following will react with bothethand and ethanoic acid at room temperature
A. CaCO3
B. CuO
C. Na-metal
D. CH3OH
5 Which compound shows the highest melting point
A. water
B. Propanoic acid
C. Methanoic acid
D. Ethanoic acid
6 In esterification, the OH of carboxylic acid is replaced by
A. OR+
B. R+
C. OR
D. R
7 Oils and fats belong to the class of
A. Alcohols
B. Hydrocarbons
C. Acids
D. Esters
8 Primany aleohols sornally give us aldehyde when oxidized in the presence of acidified Na2Cr2O7, what will be the product, when the secondary alcohols are oxidized in same condition?
A. Alkenes
B. Alkyl halide
C. Alkynes
D. Ketones
9 In the esterification, first attack is due toon carborylic acid
A. Hydrogen ion
B. Alcohols
C. Water
D. All
10 Slight oxidation of primary alcohol eives
A. Ketone
B. Aldehyde
C. -Organic acid
D. An ester

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