Chemistry Multiple-Choice Questions (MCQs) for Test Preparation ranging from Basic to Advanced. Chemistry Mcqs are from various parts of the Chemistry Subject. Chemistry Mcqs ranging from basic to advanced are available here. This will help you score higher on the Chemistry section of the test. These MCAT ECAT ETEA exam preparation Mcqs are beneficial for students and job seekers, such as MCAT ECAT ETEA test preparation, PPSC Test, FPSC Test, SPSC Test, KPPSC Test, BPSC Test, PTS, OTS, GTS, JTS, CTS.

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Created on April 01, 2022 By Preptestsonline

Chemistry MCQs Set 1

1 / 15

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

Aluminium

Sodium

Carbon

Sulphur

2 / 15

Acid present in acid rain may be_________________?

H2SO4

HNO3

both A and B

none of the above

3 / 15

The unit of the rate constant (k) is same as that of rate of reaction________________?

First order reaction

Second order reaction

Zero order reaction

Third order reaction

4 / 15

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

Pd

Ni

Sn

All of the above

5 / 15

Consider the following redox reaction. Zn+dil HNO3? Zn (NO3)2 + N2O + H2O The coefficient number of HNO3 in the equation is__________________?

6

8

10

4

6 / 15

A solution can be both____________________?

dilute and concentrated

dilute and saturated

saturated and unsaturated

saturated and super saturated

7 / 15

The unit of molality is__________________?

moles dm-3

moles kg-1

gram dm-3

none

8 / 15

Solubility of CaF2 is 2.0×10-4 gdm-3 then Ksp of CaF2 is_______________?

4.0 x 10-8

3.2 x 10-11

2.0 x 10-8

4.0 x 10-12

9 / 15

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

Kc is constant at given temperature

Kc is unaffected by change in concentration of reactants or products

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

All of the above

10 / 15

Which of the following molecule is polar__________________?

CCI4

CO2

BF3

none of the above

11 / 15

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

B

C

N

O

12 / 15

Which catalyst is used in contact process ?

Fe2O3

V2O5

SO3

Ag2O

13 / 15

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

6

4

3

2

14 / 15

On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?

pink

black

yellow

brick red

15 / 15

Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?

aluminium can be recycled

aluminium has very low density

aluminium is the most abundant metal in the earth crust

aluminium is resistant to corrosion by organic acids.

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