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

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 # 2

By state, we mean the

Question # 3

Calorie is equivalent to :

Question # 4

Calorie is equivalent to

Question # 5

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

Question # 6

In endothermic reactions, the heat content of the:

Question # 7

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

Question # 8

Neutralization of a strong acid with a strong abase is:

Question # 9

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

Question # 10

Burning of coal and hydrocarbon in air are examples of

Question # 11

A state function is a

Question # 12

Reaction between Zn and CuSO4can be called a system under

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

The majority of reactions which give stable products are

Question # 21

In endothermic reactions, the heat contents of the:

Question # 22

The subject matter of first law of thermochemistry is based on

Question # 23

When a piece of zinc is added to the copper sulphate solution, _______ colour 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 the air, the temperature of the surrounding air

Question # 27

In endothermic reactions, the heat contents of the surrounding air

Question # 28

One mole of oxygen confined in a cylinder fitted with a piston is an example of

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 When a piece of zinc is added to the copper sulfate solution,____________ color of solution disappear.
A. Pink.
B. Purple.
C. Blue.
D. Brown.
2 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)
3 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).
4 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.
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 In a chemical change, the energy in the form 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
7 Some non-spontaneous processes 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 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
9 The energy units in which heat changes usually expressed in SI-system are
A. Joule
B. Calorie
C. Kilo Joule
D. Both a and c
10 Which one of the following is not related to spontaneous process.
A.

Unidirectional.

B. Real.
C.

Irreversible.

D. Artificial.

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