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.
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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:

Numbers of Neutrons

Neither a nor b

Numbers of Electrons

Both a and b

2 / 25

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

Become neutral

Positive Charge

None of the Above

Negative charge

3 / 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.

4 / 25

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

Positive Charge

Negative charge

None of the Above

Become nuteral

5 / 25

One of the major sources of organic compounds is:

Fermentation

Natural gas

Atmosphere

Sea water

6 / 25

The electro-negativity of carbon is:

3.04

3.44

2.55

2.65

7 / 25

What is the purpose of plasticizers?

Harden plastics

Cross-link polymer chains

Initiate polymerizations

Soften plastics

8 / 25

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

form bonds in its ground state

form double and triple bonds

exist in plant and animal form

bond with other carbon atoms

9 / 25

An Atom Consists of:

Nucleus, Proton, Neutron and Electron

Nucleus, Proton and Neutron

Nucleus and Proton

Nucleus, Proton and eclectron

10 / 25

Polymers which soften on heating and harden when cooled are:

Thermoplastics

Copolymers

Cross-linked polymers

Thermosetting polymers

11 / 25

Most atoms are neutral because:

Number of protons are equals to number of neutrons

Number of electrons are equals to number of Protons

Number of electrons are equals to number of neutrons

None of the Above

12 / 25

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

Both II and III

Only II

Only I

Only III

13 / 25

The state of Carbon is:

Solid

Liquid

Plasma

Gass

14 / 25

Carbon is discovered in:

3650 BC

1772

3550 BC

3750 BC

15 / 25

Which one of the following is used to make Teflon?

1,2-difluoroethene

Fluoroethene

1,1,4,4-tetrafluorobutadiene

Tetrafluoroethylene

16 / 25

In stable organic compounds, carbon will always form:

2 bonds

4 bonds

3 bonds

5 bonds

17 / 25

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

40000

30000

10000

20000

18 / 25

Nucleus have:

Electrons

Neutrons

Electrons and Protons

Neutrons and Protons

19 / 25

The electronic configuration of carbon is:

2s22p4

2s22p3

2s22p2

2s2

20 / 25

Who record the first evidence of existence of an Atom:

John Dalton

Rutherford

Eugene Goldstein

Joseph John Thomson

21 / 25

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

nitrogen

silicon

oxygen

sulfur

22 / 25

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

Formaldehye

Ethylene glycol.

Sulfur

Benzoyl peroxide.

23 / 25

The atomic mass of carbon is:

12.0107

14.0107

1.0107

13.0107

24 / 25

Electrons have always:

No charge

Positive Charge

Negative Charge

sometimes positive and sometimes negative

25 / 25

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

john Dalton

Eugene Goldstien

Sir Earnest Rutherford

James Chadwick

Your score is

The average score is 62%

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