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

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Question # 1

Which of the following is not a property of enzymes?

Question # 2

Enzymes consist of

Question # 3

For a particular halogen, the reactivity of alkyl halides

Question # 4

Increased concentration of enzyme alkaline phosphatase is a sign of

Question # 5

The type of isomerism shown by alkyl halides is

Question # 6

Helical structure of proteins is stabilized by

Question # 7

Collagen is a fibrous protein present most abundantly in

Question # 8

Prosthetic groups are

Question # 9

Alpha helix and beta pleated sheath are secondary structures of protein which are maintained by

Question # 10

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

Question # 11

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

Question # 12

Dehydrogenase is an erample of

Question # 13

Succinic thiokinase is an enzyme of the type

Question # 14

Third order of protein structure refers to

Question # 15

Proteins have linkage between amino acids

Question # 16

All are examples of different classes of enzymes except

Question # 17

An example of bydrolase is

Question # 18

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

Question # 19

Denaturation of proteins is often characterised by

Question # 20

An example of simple protein is

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Prepare Complete Set Wise MDCAT Chemistry Chapter 18 Carboxylic Acids Online Test MCQs Online With Answers


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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Sr.# Question Answer
1 Alpha helix and beta pleated sheath are secondary structures of protein which are maintained by
A. dipole forces
B. non-polar interactions
C. ionic bonds
D. Hydrogen bonds
2 The protein component of enzyme ls called
A. apoenzyme
B. proenzyme
C. holoenyme
D. co-enzyme
3 An example of simple protein is
A. lipoprotein
B. Cholesterol
C. lecithin
D. globulin
4 The specifie substance (metabolite) that fits on the enzyme surface and is converted to products is called
A. Co-factor
B. Isoenzyme
C. Prosthetic group
D. Substrate
5 L-asparginase is helpful in treatment of
A. skin disease
B. blood cancer
C. heart failure
D. obstructive jaundice
6 The type of isomerism shown by alkyl halides is
A. geometric
B. functional
C. positional
D. metamerism
7 Dehydrogenase is an erample of
A. Transferase
B. Hydrolase
C. Lyase
D. Oxido-reductase
8 Amino acids react together to form the primary structure of proteins which is accompanied by
A. addition of water
B. addition of ammonia
C. removal of ammonia
D. removal of water
9 Third order of protein structure refers to
A. Bending of protein chain
B. Three-dimensional structure of protein
C. Number and sequence of amino acids
D. Site of disulphide bonds
10 Which of the following is not a property of enzymes?
A. extraordinary speciffcity
B. reversibility of reactions
C. high efficiency
D. minimum activity at optimum T
11 Simplest Structure of a protein that has only covalent bonding between amino acids is
A. 2° structure
B. 3°structure
C. 1° structure
D. 4° structure
12 Collagen is a fibrous protein present most abundantly in
A. heart
B. nucleus
C. connective tissues
D. Arteries
13
The enzymes that catalyse the addition or removal of ammonia are:
A. Lyases
B. Ligases
C. Transferases
D. Kinses
14 The enzyme which is found in saliva, accelerates the conversion of starch into sugar is
A. Pepsin
B. Thrombin
C. Ptyalin
D. Fumarase
15 Which of the following is the element not present in all proteins?
A. Carbon
B. Hydrogen
C. Nitrogen
D. Sulphur
16 Enzymes are
A. simple proteins
B. derived proteins
C. compound proteins
D. conjugated proteins
17 Increased concentration of enzyme alkaline phosphatase is a sign of
A. hemophilia
B. heart disease
C. thrombosis
D. rickets
18 Fe+2 is the co-factor for
A. Chrome oxidase
B. Glucose-6-phosphatase
C. Carbonic anhydrase
D. Hydrolase
19 UV rays inactivate enzymes because they
A. change sequence of amino acids of enzymes
B. They add prosthetic group to them
C. They increase their specificity
D. affect structure of enzymes
20 Proteins loose their ability to work
A. by slight heating
B. by change in structure
C. by slight cooling
D. when inside the body

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