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

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

Question # 3

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

Question # 4

Neutralization of a strong acid with a strong abase is:

Question # 5

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

Question # 6

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

Question # 7

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 # 8

By state, we mean the

Question # 9

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

Question # 10

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

Question # 11

A reaction will also be called a spontaneous if :

Question # 12

Calorie is equivalent to

Question # 13

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

Question # 14

A state function is a

Question # 15

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

Question # 16

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 # 17

Reaction between Zn and CuSO4can be called a system under

Question # 18

Work is a

Question # 19

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

Question # 20

Calorie is equivalent to :

Question # 21

When no work is done by the system

Question # 22

Some non-spontaneous processes can be made to take place by supplying energy to the system from

Question # 23

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

Question # 24

Which one of the following is not related to spontaneous process

Question # 25

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 # 26

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

Question # 27

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

Question # 28

Neutralization of a strong acid with a strong base is

Question # 29

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

Question # 30

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

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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 b and c
2 Neutralization of a strong acid with a strong abase is:
A. Natural acid base reaction.
B. Artificial acid base reaction.
C. Spontaneous acid base reaction.
D. Both (a) and (c).
3 The majority of reactions which give stable products are:
A. Exothermic.
B. Isothermal.
C. Endothermic.
D. Both (b) and (c).
4 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
5 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
6 Calorie is equivalent to
A. 0.4184 J
B. 41.84 J
C. 4.184 J
D. 418.4 J
7 When a piece of zinc is added to the copper sulfate solution,____________ color of solution disappear.
A. Pink.
B. Purple.
C. Blue.
D. Brown.
8 Calorie is equivalent to :
A. 0.4184 J
B. 4184 J
C. 4.184 J
D. 418.4 J
9 When a system absorbs energy, the sign of delta E is
A. Neither positive nor negative
B. Negative
C. Positive
D. None of above
10 Work is a
A. State function
B. Only function
C. Non-state function
D. State

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