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

In endothermic reactions, the heat contents of the:

Question # 2

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

Question # 3

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

Question # 4

Enthalpy of neutralization of all the strong acids and strong bases has the same value because:

Question # 5

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

Question # 6

A reaction will also be called a spontaneous if :

Question # 7

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

Question # 8

The majority of reactions which give stable products are:

Question # 9

Burning of coal and hydrocarbon in air are examples of

Question # 10

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

Question # 11

The subject matter of first law of thermochemistry is based on

Question # 12

Calorie is equivalent to :

Question # 13

The subject matter of first law of thermochemistry is based on:

Question # 14

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

Question # 15

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

Question # 16

The net heat 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 # 17

Neutralization of a strong acid with a strong abase is:

Question # 18

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

Question # 19

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 # 20

When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear

Question # 21

Burning of coal and hydrocarbon in air are examples of :

Question # 22

For a given process, the heat changes at constant volume ( qv)are related to other as:

Question # 23

For the reaction : NaOH + HCl---------------> NaCl + H2O the change in enthalpy is called:

Question # 24

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

Question # 25

In endothermic reactions, the heat content of the:

Question # 26

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 # 27

The majority of reactions which give stable products are

Question # 28

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

Question # 29

A reaction will also be called a spontaneous if

Question # 30

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

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 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)
2 The reaction of Zinc with copper sulphate solution is an example of
A. Oxidation reduction reaction
B. Spontaneous reaction
C. Spontaneous redox reaction
D. Non-spontaneous reaction
3 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
A. Spontaneous process
B. Natural process
C. Non-spontaneous process
D. Both a and b
4 When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear
A. Pink
B. Purple
C. Blue
D. Brown
5 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
6 Calorie is equivalent to :
A. 0.4184 J
B. 4184 J
C. 4.184 J
D. 418.4 J
7 Some Non-spontaneous process can be made to take place by supplying energy to the system from :
A. Internal source.
B. Any source.
C. External source.
D. All of above.
8 The study of heat changes accompanying a chemical reaction is known as :
A. Thermochemistry.
B. Biochemistry.
C. Physical chemistry.
D. Analytical chemistry.
9 A process which takes place on its own without any outside assistance and moves from a non-equilibrium stat towards an equilibrium stat is termed as:
A. Spontaneous process.
B. Natural process.
C. Non-Spontaneous process.
D. Both (a) and (b).
10 It is noticed that energy in the from of heat is either evolved or absorbed as a result of a:
A. Physical change.
B. Chemical change.
C. Biological change.
D. All of above.

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