PPSC Lecturer Chemistry Test 38 Online Preparation MCQs

Leave a Comment / By Hassan / May 23, 2021

Given below on this Website Online Free Taleem is free online MCQ’s test related to PPSC of Lecturer Chemistry. All the individuals who are going to appear in PPSC Lecturer of Chemistry written test can attempt these tests in order to prepare for it in best possible way. Our tests include all the important questions MCQs of Lecturer of PPSC Chemistry, all Past Papers of Lecturer of Chemistry PPSC that have extremely high amount of chances for been included in the actual exam which make our test undoubtedly the best source of preparation.

Note:-

There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
Practice this test at least 5 times if you want to secure High Marks.
At the End of the Test you can see your Test score and Rating.
If you found any incorrect answer in Quiz. Simply click on the quiz title and comment below on that MCQ. So that I can update the incorrect answer on time.

Please Click Below START Button to Take this Lecturer Chemistry Test Online.

Test Instructions:-
Test Name	Lecturer Chemistry
Subject	Chemistry Test 38
Test Type	MCQs
Total Questions	25
Total Time	20 Minutes
Total Marks	100

You have 20 minutes to pass to the quiz.

PPSC LECTURER OF CHEMISTRY TEST NO. 38

1 / 25

Which of the following statements is false about α-D-glucose?

it is a hemiacetal.

it is the purest form of table sugar.

it shows mutarotation.

it has a pyranose ring.

2 / 25

Common table sugar is

Glucose

Sucrose

Maltose

Fructose

3 / 25

The reagent that can be used to differentiate an aldose and a ketose is :

Tollens' reagent

None of these

Bromine water

Fehling's solution

4 / 25

α-D-Glucopyranose is a(n) :

hemiacetal

hemiketal

ketal

acetal

5 / 25

Which of the following carbohydrates is sweeter than sucrose?

None of these

Glucose

Lactose

Fructose

6 / 25

The monosaccharide obtained by hydrolysis of starch is :

D-Glucose

D-Ribose

D-Galactose

Maltose

7 / 25

The sugar that yields only glucose on hydrolysis is

Maltose

Sucrose

Fructose

Lactose

8 / 25

All of the following monosaccharides give the same osazone except

Glucose

Fructose

Galactose

Mannose

9 / 25

Which of the following statements is false about glucose?

it is a polyalcohol.

it is a disaccharide.

it is a reducing sugar.

it has a pyranose form.

10 / 25

The number of asymmetric carbon atoms in the α-D-glucopyranose molecule is :

11 / 25

Which of the following carbohydrates will not give a red precipitate of Cu2O when heated with Benedict's solution?

Glucose

Sucrose

Maltose

Fructose

12 / 25

Which of the following statements is false about an aldohexose?

It is a monosaccharide.

It contains a potential aldehyde group.

α-D-Glucopyranose is an aldohexose.

Fructose is an aldohexose.

13 / 25

Which of the following compounds reduces Tollens' reagent?

Methanol

Glucose

Sucrose

Acetic acid

14 / 25

Starch

is a mixture of amylose + amylopectin.

is a trisaccharide.

is also called amylose.

is also called amylopectin.

15 / 25

Which of the following statements is false about sucrose?

It may be fermented by yeast to produce alcohol.

It reduces Fehling's solution.

It is also called table sugar.

It does not reduce Tollens' reagent.

16 / 25

Which of the following statements is false about cellulose?

It is a polymer of glucose molecules joined in β-1,4 linkages.

It is used in the manufacture of Rayon fibres

It is used in the manufacture of Dacron fibres.

It is a major component of cotton.

17 / 25

Which of the following products is not derived from cellulose?

Gun cotton

Rayon

Paper

Insulin

18 / 25

Which of the following statements is false about glyceraldehyde?

It is isomeric with 1,3-dihydroxypropanone

It shows mutarotation

It is optically active

Its IUPAC name is 1,2-dihydroxypropanal

19 / 25

α-D-Glucose is different from β-D-glucose

because they are enantiomers

because they are geometrical isomers

in the configuration at C-1

because they are mirror images of each other

20 / 25

Mutarotation is a term related to

Relationship of D- and L- families

Interconversion of anomers

Hydrolysis of sucrose

Number of monsaccharides in a carbohydrate

21 / 25

Glucose cannot be classified as

an aldose

a monosaccharide

an oligosaccharide

a hexose

22 / 25

The mutarotation of glucose is characterized by :

the presence of an intramolecular bridge structure.

the irreversible change from α-D to the β-D form.

a change from an aldehyde to ketone structure.

a change of specific rotation from a (+) to a (–) value.

23 / 25

By approximately what factor is the sweetness of saccharin greater than that of sugar?

500

1000

24 / 25

A reducing sugar will

react with Fehling's test

not react with Fehling's test

always be a ketone

have fewer calories

25 / 25

Which of the following carbohydrates is not a reducing sugar?

Lactose

ructose

Sucrose

Glucose

Your score is

The average score is 0%

PPSC Lecturer Chemistry Test 38 Online Preparation MCQs

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