Explore Exams
Login Signup
Sign in Open App
JEE Exam  >  JEE Test  >  Chemistry Main & Advanced  >  Test: Preparation and Reactions of Glucose - JEE MCQ

Preparation and Reactions of Glucose - Free MCQ Practice Test with solutions,


MCQ Practice Test & Solutions: Test: Preparation and Reactions of Glucose (15 Questions)

You can prepare effectively for JEE Chemistry for JEE Main & Advanced with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Preparation and Reactions of Glucose ". These 15 questions have been designed by the experts with the latest curriculum of JEE 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 20 minutes
  • - Number of Questions: 15

Sign up on EduRev for free to attempt this test and track your preparation progress.

Test: Preparation and Reactions of Glucose - Question 1
Save

Glucose molecule reacts with number of molecules of phenylhydrazine to yield osazone. The value of is

Detailed Solution: Question 1

Test: Preparation and Reactions of Glucose - Question 2
Save

Which L-sugar on oxidation gives an optically active dibasic acid ( 2 COOH groups)?

Detailed Solution: Question 2

Any sugar will be optically active when it does not have any plane of symmetry. As only (a) \& (d) are L-sugar, (b) \& (c) are D-sugar after oxidation.
(a) (Refer to Image 1) - The product do not superimpose in its mirror image.
(d) (Refer to Image 2) - As it has plane of symmetry.

Clear all your doubts with EduRev
Test: Preparation and Reactions of Glucose - Question 3
Save

In cells the net production of ATP molecules generated from one glucose molecule is

Detailed Solution: Question 3



∴ Net ATP molecules evolved

Test: Preparation and Reactions of Glucose - Question 4
Save

Hydrolysis of sucrose with dilute aqueous sulphuric acid yields

Detailed Solution: Question 4

On hydrolysis with dilute aqueous sulphuric acid, sucrose gives a equimolar mixture of D-(+) glucose and D-(-)-fructose.

D-(+) glucose D-(-) fructose 1 : 1 arter hydrolysis
Sucrose is dextrorotatory but after hydrolysis gives dextrorotatory and laevorotatory fructose, laevorotatory fructose is more, so the mixture is laevorotatory.

Test: Preparation and Reactions of Glucose - Question 5
Save

In osazone formation, glucose reacts with three molecules of phenylhydrazine. Which statement is true regarding this?

Detailed Solution: Question 5

First molecule of phenylhydrazine unedrgoes nucleophilic addition on carbonyl (- CHO in glucose and in fructose) group. Second molecule of the reagent oxidizes - at position 2 (in aldoses) or at position 1 (in ketoses) to form or respectively. The third molecule again undergoes nucleophilic addition on the newly developed carbonyl group to form osazone.

Test: Preparation and Reactions of Glucose - Question 6
Save

What will happen when -glucose is treated with methanolic followed by Tollens' reagent?

Detailed Solution: Question 6

When - glucose is treated with methanolic followed by Tollens' reagent, no characteristic colour or ppt. will be formed.
Reaction of glucose with methanolic leads to formation of methyl glucoside
(-OH group at of hemiacetal is methylated to form acetal). Acetal, is not hydrolysable by base, so it will not respond Tollen's reagent.
Note: Tollen's reagent oxidises aldehyde to carboxylate group. Tollen's reagent itself is reduced to black silver mirror. If aldehdye group is not free (such as converted to acetal), this reaction will not occur.

Test: Preparation and Reactions of Glucose - Question 7
Save

Among the three compounds shown below, two yield the same product on reaction with warm  The exception is:

Detailed Solution: Question 7

On reaction with oxidation of aldehyde and alcohol takes place which gives carboxylic acid.
But methyl do not oxidise with . Thus (a) will give same product i.e.
(Refer to Image 1 )
But (b) on oxidation give
(Refer to Image 2 ) which is different product than that given by .

Test: Preparation and Reactions of Glucose - Question 8
Save

-Glucose -Glucose pentaacetate
Which statement is true about glucose pentaacetate?

Detailed Solution: Question 8

During acetylation of -glucose, it is the of the hemiacetal that is acetylated and not the that forms the ring (cyclic structure). Since equilibrium with the open-chain aldehyde is prevented, the penta-acetate does not respond the aldehydic reactions.

Test: Preparation and Reactions of Glucose - Question 9
Save

The two forms of D-glucopyranose obtained from the solution of D-glucose are called

Detailed Solution: Question 9

Two forms of D-glucopyranose are -glucopyranose and (+)-glucopyranose. These are anomers (a pair of stereoisomers) which differ in configuration only around first carbon atom are called anomers.

Test: Preparation and Reactions of Glucose - Question 10
Save

The number of molecules of ATP produced per molecule of glucose in glycolysis is

Detailed Solution: Question 10


The number of molecules of ATP produced per molecule of glucose in glycolysis is 2 .

Test: Preparation and Reactions of Glucose - Question 11
Save

Reducing saccharides among the following are

Detailed Solution: Question 11

Reducing saccharides are capable of acting as a reducing agent due to the presence of free aldehyde or ketone group. Ribose, maltose and lactose are reducing saccharides.

Test: Preparation and Reactions of Glucose - Question 12
Save

Carbohydrates are stored in plants and animals in which of the following forms respectively?

Detailed Solution: Question 12

Carbohydrates are stored in plants in form of starch and in animals in the form of glycogen. The starch and glycogen are broken during metabolism to release energy.

Test: Preparation and Reactions of Glucose - Question 13
Save

Which of the following statements are true about carbohydrates?
(i) Monosaccharides can be hydrolysed.
(ii) The two monosaccharide units obtained on hydrolysis of a disaccharide can either be same or different.
(iii) Polysaccharides are now sweet in taste.
(iv) All monosaccharides are not reducing. sugars.

Detailed Solution: Question 13

(i) Monosaccharides can be hydrolysed.
False – Monosaccharides are the simplest form of carbohydrates and cannot be hydrolysed into simpler sugars.

(ii) The two monosaccharide units obtained on hydrolysis of a disaccharide can either be same or different.
True – For example, maltose (glucose + glucose) and sucrose (glucose + fructose) show that disaccharides can contain the same or different monosaccharides.

(iii) Polysaccharides are not sweet in taste.
True – Polysaccharides like starch and cellulose are generally tasteless or bland.

(iv) All monosaccharides are not reducing sugars.
False – All common monosaccharides (like glucose, fructose, galactose) are reducing sugars, though their reducing ability may vary.

Correct Answer: b) (ii) and (iii)

Test: Preparation and Reactions of Glucose - Question 14
Save

Which of the following does not reduce Benedict's solution?

Detailed Solution: Question 14

Sucrose, being a non-reducing sugar, does not reduce Benedict's solution. Remember that fructose has an -hydroxy ketonic group, which is also reducing group (different from ordinary ketonic group)

Test: Preparation and Reactions of Glucose - Question 15
Save

Hydrolysis of sucrose is called

Detailed Solution: Question 15

Since sucrose is dextrorotatory while hydrolysis product of sucrose, having equimolar mixture of glucose and fructose, is laevorotatory. Hence the hydrolysed product of sucrose is known as invert sugar and the hydrolysis of sucrose is known as inversion.

335 videos|699 docs|300 tests
Join Course
Information about Test: Preparation and Reactions of Glucose Page
In this test you can find the Exam questions for Test: Preparation and Reactions of Glucose solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Preparation and Reactions of Glucose , EduRev gives you an ample number of Online tests for practice
Download as PDF

About this JEE Practice Test

This test contains 15 MCQs on Preparation and Reactions of Glucose with detailed solutions for each question. It is part of the Chemistry for JEE Main & Advanced course on EduRev, designed to align with the current JEE syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

Explore more JEE Study Resources

If you found this Preparation and Reactions of Glucose MCQ Test helpful, you can further enhance your JEE preparation with in-depth courses on EduRev, for all the subjects and topics available in Chemistry for JEE Main & Advanced course. The course offers:
  • Video Lectures: covering all the topics of Chemistry for JEE Main & Advanced
  • Notes for Revision: offering revision notes, important questions, summaries, flashcards, cheatsheets & more for JEE preparation
  • MCQ Test: variety of questions as per the pattern of JEE exam
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup