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Test: Biomolecules Level - 1 - Chemistry MCQ


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30 Questions MCQ Test Organic Chemistry - Test: Biomolecules Level - 1

Test: Biomolecules Level - 1 for Chemistry 2024 is part of Organic Chemistry preparation. The Test: Biomolecules Level - 1 questions and answers have been prepared according to the Chemistry exam syllabus.The Test: Biomolecules Level - 1 MCQs are made for Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Biomolecules Level - 1 below.
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Test: Biomolecules Level - 1 - Question 1

Which of the following pairs give posit ive Tollen’s test:

Test: Biomolecules Level - 1 - Question 2

Two forms of D-glucopyranose, are called:

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Test: Biomolecules Level - 1 - Question 3

The most basic amino acid among the following is:

Test: Biomolecules Level - 1 - Question 4

Tollens test will be negative for:

Test: Biomolecules Level - 1 - Question 5

Specific rotations of freshly prepared aqueous solutions of I and II are +112 and +18.7, respectively. On standing, the optical rotation of aqueous solution of I slowly decreases to give a final value of +52.7 due to equilibrium with II. Under this state of equilibrium, what is the ratio II:I?

 

Test: Biomolecules Level - 1 - Question 6

The Haworth projection for a-anomer of D-glucose is:

Test: Biomolecules Level - 1 - Question 7

The correct epimeric pair of the following is:

              

Test: Biomolecules Level - 1 - Question 8

The incorrect statement in the following is:

Test: Biomolecules Level - 1 - Question 9

The titration curve of alanine hydrochloride is given below:

The position in the graph that corresponds to the isoelectric point of alanine is:

Test: Biomolecules Level - 1 - Question 10

The absolute configurat ions at the two chiral centers in D-ribulose are:

Test: Biomolecules Level - 1 - Question 11

Among the following compounds, which one on reduction wit h NaBH4 gives meso-compound:

Test: Biomolecules Level - 1 - Question 12

The major product of the reaction is:

Test: Biomolecules Level - 1 - Question 13

The final product of the following reaction:

Test: Biomolecules Level - 1 - Question 14

How many moles of formaldehyde will be formed:

Test: Biomolecules Level - 1 - Question 15

D-glucose and D-fructose can be distinguished by:

Test: Biomolecules Level - 1 - Question 16

Among α- and β-anomeric pairs which one is more stable:

Test: Biomolecules Level - 1 - Question 17

Among the D-glucopyranose forms given below, which is more stable:

Test: Biomolecules Level - 1 - Question 18

Glycosidic linkage will be formed from among which of these reactions:

Test: Biomolecules Level - 1 - Question 19

The product of the below reaction would be:

Test: Biomolecules Level - 1 - Question 20

The compound would be obtained from the

Test: Biomolecules Level - 1 - Question 21

The below reaction a compound. From the sugars given below, identify the sugar that gives the same compound:

Test: Biomolecules Level - 1 - Question 22

From the below list, identify the sugars which on reduction give the same glucitol:

Test: Biomolecules Level - 1 - Question 23

Generally β-[D] glucose in more stable under H2O. But the solvent is changed to Cyclohexanol under Cyclohexanol. The stable form (major contribution) would be:

Test: Biomolecules Level - 1 - Question 24

The structure of D-galactose is:

Which one of these structures is L-galactose?

Test: Biomolecules Level - 1 - Question 25

The complementary strand of DNA for the following single stranded DNA sequence: 5' - A - T - C- A - T - G - C-3' is:

Detailed Solution for Test: Biomolecules Level - 1 - Question 25

Correct Answer :- C

Explanation : In DNA, Adenine (A) pairs with Thymine (T) and Guanine (G) pairs with Cytosine (C).

Hence, on replication of DNA in M phase, complementary nucleotides for each base pair will be added as follows:

A - T

T - A

G - C

C - G

Since replication occurs in 5'-3' direction, so the complementary strand will be formed in 3'-5' direction.

Test: Biomolecules Level - 1 - Question 26

Synthesis of each molecule of glucose in photosynthesis involves:

Test: Biomolecules Level - 1 - Question 27

In the scheme shown above P, Q, R and S are:

Test: Biomolecules Level - 1 - Question 28

The correct statement about the following disaccharide is:

Test: Biomolecules Level - 1 - Question 29

Match the isoelectric point with the amino acids.

    

Test: Biomolecules Level - 1 - Question 30

Cellulose upon acetylation with excess acetic anhydride/H2SO4 (catalyst ic) gives cellulose triacetate whose structure is:

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