Subject Specialist Chemistry

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

The electro-negativity of carbon is:

2.55

2.65

3.04

3.44

2 / 25

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

James Chadwick

Sir Earnest Rutherford

john Dalton

Eugene Goldstien

3 / 25

Which one of the following is used to make Teflon?

1,1,4,4-tetrafluorobutadiene

1,2-difluoroethene

Fluoroethene

Tetrafluoroethylene

4 / 25

An Atom Consists of:

Nucleus and Proton

Nucleus, Proton and eclectron

Nucleus, Proton, Neutron and Electron

Nucleus, Proton and Neutron

5 / 25

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

Only II

Both II and III

Only III

Only I

6 / 25

Carbon is discovered in:

1772

3750 BC

3650 BC

3550 BC

7 / 25

Nucleus have:

Electrons

Electrons and Protons

Neutrons and Protons

Neutrons

8 / 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 are only slightly soluble or insoluble in water

They usually have low melting points.

9 / 25

The atomic mass of carbon is:

14.0107

1.0107

13.0107

12.0107

10 / 25

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

Positive Charge

Negative charge

None of the Above

Become neutral

11 / 25

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

nitrogen

silicon

sulfur

oxygen

12 / 25

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

Benzoyl peroxide.

Sulfur

Ethylene glycol.

Formaldehye

13 / 25

What is the purpose of plasticizers?

Initiate polymerizations

Soften plastics

Harden plastics

Cross-link polymer chains

14 / 25

Who record the first evidence of existence of an Atom:

Rutherford

Joseph John Thomson

Eugene Goldstein

John Dalton

15 / 25

The electronic configuration of carbon is:

2s22p3

2s22p2

2s2

2s22p4

16 / 25

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

Become nuteral

Positive Charge

Negative charge

None of the Above

17 / 25

The state of Carbon is:

Gass

Liquid

Solid

Plasma

18 / 25

In stable organic compounds, carbon will always form:

3 bonds

4 bonds

2 bonds

5 bonds

19 / 25

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

form double and triple bonds

form bonds in its ground state

bond with other carbon atoms

exist in plant and animal form

20 / 25

Electrons have always:

Negative Charge

No charge

sometimes positive and sometimes negative

Positive Charge

21 / 25

Polymers which soften on heating and harden when cooled are:

Copolymers

Thermoplastics

Cross-linked polymers

Thermosetting polymers

22 / 25

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

40000

30000

10000

20000

23 / 25

One of the major sources of organic compounds is:

Natural gas

Fermentation

Atmosphere

Sea water

24 / 25

n an atom numbers of protons are equal to:

Neither a nor b

Numbers of Neutrons

Both a and b

Numbers of Electrons

25 / 25

Most atoms are neutral because:

Number of electrons are equals to number of Protons

Number of protons are equals to number of neutrons

None of the Above

Number of electrons are equals to number of neutrons

Your score is

The average score is 64%

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