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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.
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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

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

bond with other carbon atoms

form bonds in its ground state

form double and triple bonds

exist in plant and animal form

2 / 25

The atomic mass of carbon is:

14.0107

13.0107

12.0107

1.0107

3 / 25

Nucleus have:

Electrons

Electrons and Protons

Neutrons

Neutrons and Protons

4 / 25

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

Bonds which bind the atoms together are nearly always ionic

If water soluble they seldom conduct an electric current

They usually have low melting points.

They usually are only slightly soluble or insoluble in water

5 / 25

The electronic configuration of carbon is:

2s22p2

2s2

2s22p3

2s22p4

6 / 25

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

Sulfur

Formaldehye

Benzoyl peroxide.

Ethylene glycol.

7 / 25

In stable organic compounds, carbon will always form:

2 bonds

3 bonds

4 bonds

5 bonds

8 / 25

The electro-negativity of carbon is:

3.04

3.44

2.55

2.65

9 / 25

What is the purpose of plasticizers?

Soften plastics

Initiate polymerizations

Harden plastics

Cross-link polymer chains

10 / 25

Who record the first evidence of existence of an Atom:

Rutherford

John Dalton

Eugene Goldstein

Joseph John Thomson

11 / 25

Which one of the following is used to make Teflon?

Tetrafluoroethylene

1,1,4,4-tetrafluorobutadiene

1,2-difluoroethene

Fluoroethene

12 / 25

Carbon is discovered in:

3750 BC

3650 BC

3550 BC

1772

13 / 25

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

Eugene Goldstien

Sir Earnest Rutherford

john Dalton

James Chadwick

14 / 25

Most atoms are neutral because:

Number of electrons are equals to number of neutrons

None of the Above

Number of electrons are equals to number of Protons

Number of protons are equals to number of neutrons

15 / 25

Electrons have always:

No charge

Positive Charge

Negative Charge

sometimes positive and sometimes negative

16 / 25

Polymers which soften on heating and harden when cooled are:

Thermosetting polymers

Copolymers

Thermoplastics

Cross-linked polymers

17 / 25

An Atom Consists of:

Nucleus, Proton and Neutron

Nucleus, Proton, Neutron and Electron

Nucleus and Proton

Nucleus, Proton and eclectron

18 / 25

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

Negative charge

Positive Charge

None of the Above

Become nuteral

19 / 25

The state of Carbon is:

Gass

Liquid

Solid

Plasma

20 / 25

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

Only I

Only III

Only II

Both II and III

21 / 25

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

20000

10000

40000

30000

22 / 25

n an atom numbers of protons are equal to:

Numbers of Neutrons

Neither a nor b

Both a and b

Numbers of Electrons

23 / 25

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

oxygen

nitrogen

silicon

sulfur

24 / 25

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

Become neutral

None of the Above

Positive Charge

Negative charge

25 / 25

One of the major sources of organic compounds is:

Natural gas

Atmosphere

Sea water

Fermentation

Your score is

The average score is 62%

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