ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

Try The MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

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ECAT Chemistry Chapter 7 Thermo Chemistry

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Question # 1

Neutralization of a strong acid with a strong base is

Question # 2

A process which takes place on its own without any outside assistance and moves from a non-equilibrium state towards an equilibrium state is termed as

Question # 3

The energy units in which heat changes usually expressed in SI-system are

Question # 4

Calorie is equivalent to

Question # 5

The reaction of zinc with the copper sulfate solution is an example of.

Question # 6

The study of heat changes accompanying a chemical reaction is known as :

Question # 7

If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air

Question # 8

The change in heat energy of a chemical reaction at constant temperature and pressure is called :

Question # 9

Which one of the following is not related to spontaneous process

Question # 10

The net heat change in a chemical reaction is same, whether it is brought about in two or more different ways in one or several steps. It is known as:

Question # 11

If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air:

Question # 12

The reaction of Zinc with copper sulphate solution is an example of

Question # 13

The majority of reactions which give stable products are

Question # 14

When no work is done by the system

Question # 15

The energy units in which heat changes usually expressed in Sl-system are:

Question # 16

Neutralization of a strong acid with a strong abase is:

Question # 17

Which one of the following is not related to spontaneous process.

Question # 18

A reaction will also be called a spontaneous if

Question # 19

The majority of reactions which give stable products are:

Question # 20

The real or imaginary surface separating the system from the surrounding is called

Question # 21

A state function is a

Question # 22

The change in heat energy of a chemical reaction at constant temperature and pressure is called

Question # 23

Calorie is equivalent to :

Question # 24

Burning of coal and hydrocarbon in air are examples of

Question # 25

It is noticed that energy in the from of heat is either evolved or absorbed as a result of a:

Question # 26

In endothermic reactions, the heat contents of the:

Question # 27

In endothermic reactions, the heat contents of the surrounding air

Question # 28

In endothermic reactions, the heat content of the:

Question # 29

The subject matter of first law of thermochemistry is based on

Question # 30

When a piece of zinc is added to the copper sulfate solution,____________ color of solution disappear.

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 The net heat change in a chemical reaction is same, whether it is brought about in two or more different ways in one or several steps. It is known as:
A. Henry's law.
B. Joule's principle.
C. Hess's law.
D. Law of conservation of energy.
2 The energy units in which heat changes usually expressed in Sl-system are:
A. Joule.
B. Calorie.
C. Kilo Joule.
D. Both (a) and (c)
3 The majority of reactions which give stable products are
A. Exothermic
B. Isothermal
C. Endothermic
D. Both a and c
4 Work is a
A. State function
B. Only function
C. Non-state function
D. State
5 A state function is a
A. Microscopic property
B. Macroscopic
C. Unique property
D. Both a and c
6 The study of heat changes accompanying a chemical reaction is known as :
A. Thermochemistry.
B. Biochemistry.
C. Physical chemistry.
D. Analytical chemistry.
7 One mole of oxygen confined in a cylinder fitted with a piston is an example of
A. Surrounding
B. System and surrounding
C. System
D. State function
8 Burning of coal and hydrocarbon in air are examples of :
A. Non-spontaneous reaction.
B. Spontaneous reaction.
C. Natural reaction
D. Both (a) and (C)
9 The real or imaginary surface separating the system from the surrounding is called
A. Imaginary line
B. Boundary
C. Real line
D. All of above
10 When a system absorbs energy, the sign of delta E is
A. Neither positive nor negative
B. Negative
C. Positive
D. None of above

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