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

For a particular halogen, the reactivity of alkyl halides

Question # 2

Fe+2 is the co-factor for

Question # 3

Prosthetic groups are

Question # 4

All are examples of different classes of enzymes except

Question # 5

UV rays inactivate enzymes because they

Question # 6

Dehydrogenase is an example of

Question # 7

Increased concentration of enzyme alkaline phosphatase is a sign of

Question # 8

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

Question # 9

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

Question # 10

Proteins loose their ability to work

Question # 11

Enzymes have been classified on the basis of

Question # 12

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

Question # 13

Which of the following is not a property of enzymes?

Question # 14

Dehydrogenase is an erample of

Question # 15

Which of the following bond is responsible for joining the amino acids in proteins?

Question # 16

The structure of protein helps protein to

Question # 17

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

Question # 18

An example of simple protein is

Question # 19

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

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 The enzymes that bring about exchange of functional groups like phosphate are called
A. Ligases
B. Lyases
C. Isomerases
D. Transferases
2 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
3 L-asparginase is helpful in treatment of
A. skin disease
B. blood cancer
C. heart failure
D. obstructive jaundice
4 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
5 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
6 Collagen is a fibrous protein present most abundantly in
A. heart
B. nucleus
C. connective tissues
D. Arteries
7 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
8 Succinic thiokinase is an enzyme of the type
A. mutase
B. peroxidase
C. ligase
D. lyase
9 Based on the physico-chemical properties, proteins may be classified into the following types
A. Simple proteins
B. Compound proteins
C. Derived proteins
D. All of the above
10 Enzymes are
A. simple proteins
B. derived proteins
C. compound proteins
D. conjugated proteins

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