PPSC Lecturer Chemistry Test 20 Online Preparation MCQs

1 Comment / By Hassan / October 24, 2020

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 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.
If you found any incorrect answer in Quiz. Simply click on the quiz title and comment below on that MCQ. So that I can update the incorrect answer on time.

Please Click Below START Button to Take this Lecturer Chemistry Test Online.

Test Instructions:-
Test Name	Lecturer Chemistry
Subject	Chemistry Test 20
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 Test 20

1 / 25

A solution can be both:

dilute and concentrated

saturated and unsaturated

dilute and saturated

saturated and super saturated

2 / 25

Which of the following elements react with steam to produce H2 gas?

All of the above

3 / 25

Only London dispersion forces are present among the...............?

Atoms of helium in gaseous state at high temperature

Molecules of hydrogen chloride gas

Molecules of water in liquid state

Molecules of solid iodine

4 / 25

A method of separation of components from its solution using Distribution law is:

Distillation

Sublimation

Crystallisation

Solvent extraction

5 / 25

Quantum number values for 3p orbitals:

n=3 1=3

n=31=1

n=3 1=0

n=31=2

6 / 25

Acid present in acid rain may be?

HN03

both A and B

H2S04

none of the above

7 / 25

Which of the following molecule is polar?

CCI4

none of the above

C02

BF3

8 / 25

Which specie has unpaired electrons in antibonding molecular orbitals?

02-2

02+2

N2-2

9 / 25

Which catalyst is used in contact process ?

Fe203

S03

V205

Ag20

10 / 25

For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other:

qp < qv

qp = qv

qp > qv

qp = qv / 2

11 / 25

Which of the following points are important in connection with equilibrium constant?

Kc is constant at given temperature

All of the above

Kc is unaffected by change in concentration of reactants or products

Kc indicates the extent of reaction but not about the rate of reaction

12 / 25

The unit of molality is:

none

moles dm-3

moles kg-1

gram dm-3

13 / 25

Isotopes differs in............?

arrangement of electrons in orbitals

chemical properties

properties depend upon mass

position in the periodic table

14 / 25

Which of the following elements conduct electricity and also melts below 100°C ?

Aluminium

Sodium

Sulphur

Carbon

15 / 25

The volume occupied by 1.4g CO at S.T.P is...............?

1.12 cm3

2.24 dm3

1.12 dm3

22.4 dm3

16 / 25

The unit of the rate constant (k) is same as that of rate of reaction:

Second order reaction

First order reaction

Third order reaction

Zero order reaction

17 / 25

Solubility of CaF2 is 2.0x10-4 gdm-3 then Ksp of CaF2 is:

2.0 x 10-8

3.2 x 10-11

4.0 x 10-8

4.0 x 10-12

18 / 25

What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3

19 / 25

Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is ?

one / seventeen

two / three

sixteen / seventeen

one/three

20 / 25

Water absorber used in combustion analysis is.................?

50% KOH

CaC12

Mg (004)2

Lime water

21 / 25

The molecules of C02 in dry ice form............?

Molecular crystal

Covalent crystal

Ionic crystal

Molecular crystal B. Any type of crystal

22 / 25

The type of filtering media used for filtration depending upon.............?

Nature of reactants

Nature of product

Nature of crucible

Nature of precipitate

23 / 25

Which of the following elements has greater 1st ionization energy ?

24 / 25

Which of the following set has all species isoelectronic............?

F - Ne - Na+

H+ - H- - H

Li+1 -Na+1 - K+l

F - Cl - Br

25 / 25

The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is......?

Ethylene fluoride

Ethylene bromide

Ethylene chloride

Ethylene iodide

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1 thought on “PPSC Lecturer Chemistry Test 20 Online Preparation MCQs”

Muhammad Rizwan
June 7, 2021 at 7:53 pm

Make correction in answers of question no.
20 & 23
The right expression is given below
20. Mg(ClO4)2
23. F- ,Ne,Na+

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