SSE 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.
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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

n an atom numbers of protons are equal to:

Neither a nor b

Numbers of Neutrons

Numbers of Electrons

Both a and b

2 / 25

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

john Dalton

Eugene Goldstien

Sir Earnest Rutherford

James Chadwick

3 / 25

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

None of the Above

Become nuteral

Positive Charge

Negative charge

4 / 25

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

Bonds which bind the atoms together are nearly always ionic

They usually have low melting points.

If water soluble they seldom conduct an electric current

They usually are only slightly soluble or insoluble in water

5 / 25

Polymers which soften on heating and harden when cooled are:

Thermosetting polymers

Cross-linked polymers

Thermoplastics

Copolymers

6 / 25

Who record the first evidence of existence of an Atom:

Joseph John Thomson

Rutherford

Eugene Goldstein

John Dalton

7 / 25

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

Only III

Only I

Only II

Both II and III

8 / 25

One of the major sources of organic compounds is:

Atmosphere

Fermentation

Sea water

Natural gas

9 / 25

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

Become neutral

None of the Above

Positive Charge

Negative charge

10 / 25

In stable organic compounds, carbon will always form:

4 bonds

2 bonds

5 bonds

3 bonds

11 / 25

Which one of the following is used to make Teflon?

1,2-difluoroethene

Tetrafluoroethylene

1,1,4,4-tetrafluorobutadiene

Fluoroethene

12 / 25

Most atoms are neutral because:

Number of electrons are equals to number of Protons

None of the Above

Number of protons are equals to number of neutrons

Number of electrons are equals to number of neutrons

13 / 25

An Atom Consists of:

Nucleus, Proton and eclectron

Nucleus, Proton and Neutron

Nucleus and Proton

Nucleus, Proton, Neutron and Electron

14 / 25

What is the purpose of plasticizers?

Soften plastics

Initiate polymerizations

Cross-link polymer chains

Harden plastics

15 / 25

Carbon is discovered in:

3550 BC

3750 BC

3650 BC

1772

16 / 25

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

Ethylene glycol.

Formaldehye

Sulfur

Benzoyl peroxide.

17 / 25

The atomic mass of carbon is:

12.0107

1.0107

13.0107

14.0107

18 / 25

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

nitrogen

oxygen

silicon

sulfur

19 / 25

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

10000

40000

30000

20000

20 / 25

The electro-negativity of carbon is:

3.44

3.04

2.55

2.65

21 / 25

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

exist in plant and animal form

form double and triple bonds

form bonds in its ground state

bond with other carbon atoms

22 / 25

The electronic configuration of carbon is:

2s22p4

2s22p2

2s2

2s22p3

23 / 25

Nucleus have:

Electrons and Protons

Neutrons

Electrons

Neutrons and Protons

24 / 25

The state of Carbon is:

Plasma

Gass

Liquid

Solid

25 / 25

Electrons have always:

sometimes positive and sometimes negative

Negative Charge

No charge

Positive Charge

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