MDCAT Chemistry Chapter 18 MCQ Test With Answer for (Carboxylic Acids)

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MCQ's Test For MDCAT Chemistry Chapter 18 Carboxylic Acids Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 18 Carboxylic Acids Online Test

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MDCAT Chemistry Chapter 18 Carboxylic Acids Online Test

00:00
Question # 1

Which of the following is the element not present in all proteins?

Question # 2

Glucose is converted into ethanol by the enzyme present in the yeast

Question # 3

Enzymes have been classified on the basis of

Question # 4

Increased concentration of enzyme alkaline phosphatase is a sign of

Question # 5

An example of bydrolase is

Question # 6

Collagen is a fibrous protein present most abundantly in

Question # 7

Lactoglobulin is found in

Question # 8

UV rays inactivate enzymes because they

Question # 9

Denaturation of proteins is often characterised by

Question # 10

Simplest Structure of a protein that has only covalent bonding between amino acids is

Question # 11

Enzymes consist of

Question # 12

The enzyme which is found in saliva, accelerates the conversion of starch into sugar is

Question # 13

Proteins have linkage between amino acids

Question # 14

The protein component of enzyme ls called

Question # 15

Helical structure of proteins is stabilized by

Question # 16

The enzymes that catalyse the addition or removal of ammonia are:

Question # 17

Based on the physico-chemical properties, proteins may be classified into the following types

Question # 18

The specifie substance (metabolite) that fits on the enzyme surface and is converted to products is called

Question # 19

In proteins, the alpha-helix and Beta-pleated sheet are examples of

Question # 20

Succinic thiokinase is an enzyme of the type

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a) Describe the structure of aldehydes and ketones.

b) Discuss preparation of aldehydes and ketones by oxidation of alcohols.

c) Discuss the following reactions of aldehydes and ketones:

i) Common to both:

  • 2,4-DNPH to detect the presence of carbonyl group

  • HCN to show mechanism of nucleophilic addition reaction

  • Reduction with NaBH₄ or LiAlH₄

ii) Reactions in which aldehydes differ from ketones:

  • Oxidation with Tollen’s reagent

  • Oxidation with Fehling’s solution

iii) Reaction which shows presence of CH₃CO– group in aldehydes and ketones:

  • Triiodomethane test (Iodoform test) using alkaline aqueous iodine.

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MCAT Chemistry Chapter 18 Important MCQ's

Sr.# Question Answer
1 Helical structure of proteins is stabilized by
A. Peptide bond
B. Dipeptide bond
C. Van der Wall's forces
D. Hydrogen bonding
2 Succinic thiokinase is an enzyme of the type
A. mutase
B. peroxidase
C. ligase
D. lyase
3 Primar structure of proteins refers to
A. Coling and folding in form of specilie structure
B. 3d structure
C. Number of amino acids in a chain
D. Alpha and Beta sheets
4 Enzymes are
A. simple proteins
B. derived proteins
C. compound proteins
D. conjugated proteins
5 An example of simple protein is
A. lipoprotein
B. Cholesterol
C. lecithin
D. globulin
6 Which of the following is the element not present in all proteins?
A. Carbon
B. Hydrogen
C. Nitrogen
D. Sulphur
7 Increased concentration of enzyme alkaline phosphatase is a sign of
A. hemophilia
B. heart disease
C. thrombosis
D. rickets
8 An example of bydrolase is
A. Amylase
B. Lipase
C. Fumarase
D. A,C
9 Lactoglobulin is found in
A. nucleus
B. nerve cells
C. Plants only
D. muscles and in plants
10 Enzymes consist of
A. proteins only
B. proteins and non-protein parts
C. fats only
D. futs and non-fatty components

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