KKPSC Chemistry MCQs

PPSC FPSC KPPSC BPSC SPSC Lecturer Chemistry Online Test No.2

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, FPSC, KKPSC, SPSC, BPSC, AJ&KPSC, NTS 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.
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Test Instructions:-
Test Name	Lecturer Chemistry
Subject	Chemistry Test 2
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 Practice Test 2

1 / 25

In stable organic compounds, carbon will always form:

3 bonds

2 bonds

5 bonds

4 bonds

2 / 25

Atom is.................................times bigger than nucleus:

20000

10000

40000

30000

3 / 25

Polymers which soften on heating and harden when cooled are:

Copolymers

Thermoplastics

Thermosetting polymers

Cross-linked polymers

4 / 25

Most atoms are neutral because:

Number of electrons are equals to number of neutrons

Number of electrons are equals to number of Protons

None of the Above

Number of protons are equals to number of neutrons

5 / 25

When electrons are added, An ion gains .............

Become nuteral

None of the Above

Positive Charge

Negative charge

6 / 25

n an atom numbers of protons are equal to:

Both a and b

Numbers of Electrons

Neither a nor b

Numbers of Neutrons

7 / 25

Which of the following is not a characteristic of organic compounds?

They usually are only slightly soluble or insoluble in water

If water soluble they seldom conduct an electric current

They usually have low melting points.

Bonds which bind the atoms together are nearly always ionic

8 / 25

What is the purpose of plasticizers?

Harden plastics

Initiate polymerizations

Soften plastics

Cross-link polymer chains

9 / 25

The element least likely to be found in an organic compound is:

sulfur

silicon

oxygen

nitrogen

10 / 25

Carbon is discovered in:

3750 BC

3650 BC

1772

3550 BC

11 / 25

Who record the first evidence of existence of an Atom:

Joseph John Thomson

Eugene Goldstein

Rutherford

John Dalton

12 / 25

Catenation is a property of the carbon atom which describes its ability to:

form bonds in its ground state

exist in plant and animal form

bond with other carbon atoms

form double and triple bonds

13 / 25

Which of the following are condensation polymers?
I. Polypropylene
II. Teflon
III. Nylon

Only II

Both II and III

Only III

Only I

14 / 25

The electro-negativity of carbon is:

3.44

2.65

2.55

3.04

15 / 25

An Atom Consists of:

Nucleus and Proton

Nucleus, Proton and eclectron

Nucleus, Proton, Neutron and Electron

Nucleus, Proton and Neutron

16 / 25

The state of Carbon is:

Solid

Liquid

Plasma

Gass

17 / 25

Nucleus have:

Electrons and Protons

Neutrons and Protons

Electrons

Neutrons

18 / 25

The atomic mass of carbon is:

14.0107

12.0107

13.0107

1.0107

19 / 25

Vulcanization is the process of cross-linking polymer chains in rubber using:

Benzoyl peroxide.

Sulfur

Ethylene glycol.

Formaldehye

20 / 25

When electrons are removed, An ion gains .....................

Positive Charge

None of the Above

Become neutral

Negative charge

21 / 25

Which scientist explored that nucleus is very small and have positive charge:

Sir Earnest Rutherford

James Chadwick

john Dalton

Eugene Goldstien

22 / 25

One of the major sources of organic compounds is:

Fermentation

Natural gas

Sea water

Atmosphere

23 / 25

Electrons have always:

Positive Charge

sometimes positive and sometimes negative

No charge

Negative Charge

24 / 25

The electronic configuration of carbon is:

2s2

2s22p3

2s22p2

2s22p4

25 / 25

Which one of the following is used to make Teflon?

1,1,4,4-tetrafluorobutadiene

1,2-difluoroethene

Fluoroethene

Tetrafluoroethylene

Your score is

The average score is 62%

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