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

Calorie is equivalent to

Question # 2

Which of the following statements is contrary to the first law of themodynamics

Question # 3

A state function is a

Question # 4

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

Question # 5

Reaction between Zn and CuSO4can be called a system under

Question # 6

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

Question # 7

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

Question # 8

In endothermic reactions, the heat content of the:

Question # 9

In endothermic reactions, the heat contents of the surrounding air

Question # 10

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

Question # 11

A reaction will also be called a spontaneous if :

Question # 12

When a system absorbs energy, the sign of delta E is

Question # 13

When no work is done by the system

Question # 14

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

Question # 15

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 # 16

The majority of reactions which give stable products are

Question # 17

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

Question # 18

Calorie is equivalent to :

Question # 19

The majority of reactions which give stable products are:

Question # 20

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 # 21

In a chemical change, the energy in the form of heat will either be evolved or absorbed and this is called

Question # 22

The subject matter of first law of thermochemistry is based on

Question # 23

Which of the following statements is contrary to the first law of thermodynamics?

Question # 24

By state, we mean the

Question # 25

By comparing both initial and final states of the system, we can describe the change taking place in the

Question # 26

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

Question # 27

Work is a

Question # 28

Neutralization of a strong acid with a strong abase is:

Question # 29

Some Non-spontaneous process can be made to take place by supplying energy to the system from :

Question # 30

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

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 Neutralization of a strong acid with a strong base is
A. Natural acid base reaction
B. Artificial acid base reaction
C. Spontaneous acid base reaction
D. both a and c
2 In a chemical change, the energy in the from of heat will either be evolved or absorbed and this is called:
A. Endothermic.
B. Heat of products.
C. Exothermic reaction.
D. Heat of reaction.
3 The change in heat energy of a chemical reaction at constant temperature and pressure is called :
A. Enthalpy change.
B. Seat of sublimation.
C. Bind energy.
D. Internal energy change.
4 If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air :
A. Remains constant.
B. Decreases.
C. Increases.
D. Fluctuates rapidly.
5 Enthalpy of neutralization of all the strong acids and strong bases has the same value because:
A. Neutralization leads to the formation of salt and water.
B. Strong acids and bases are ionic substances.
C. Acids always give rise to H+ions and bases always furnish OH-ions.
D. The net chemical change involve the combination of H+ and OH-ions to form water.
6 The majority of reactions which give stable products are
A. Exothermic
B. Isothermal
C. Endothermic
D. Both a and c
7 The change in heat energy of a chemical reaction at constant temperature and pressure is called
A. entahlpy change
B. heat of sublimation
C. bond energy
D. internal energy change
8 A state function is a
A. Microscopic property
B. Macroscopic
C. Unique property
D. Both a and c
9 When a piece of zinc is added to the copper sulfate solution,____________ color of solution disappear.
A. Pink.
B. Purple.
C. Blue.
D. Brown.
10 Burning of coal and hydrocarbon in air are examples of
A. Non-spontaneous reaction
B. Spontaneous reaction
C. Natural reaction
D. Both b and c

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