ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

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hadia ejaz 29 - May - 2024 11 Min 27 Sec 90/120
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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	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	A. Henry's law B. Joule's princile C. Hess's law D. law of conservation of energy
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	Calorie is equivalent to	A. 0.4184 J B. 41.84 J C. 4.184 J D. 418.4 J
5	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
6	A reaction will also be called a spontaneous if	A. It does not need energy to start with B. It needs energy to carry the whole process C. It needs energy at the end of reaction D. It needs energy to start with
7	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
8	When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear	A. Pink B. Purple C. Blue D. Brown
9	In endothermic reactions, the heat contents of the:	A. Products equal to the reactants. B. Reactants more than that of products. C. Products more than that of reactants D. Both (b) and (c)
10	Reaction between Zn and CuSO₄can be called a system under	A. Surrounding B. Observation C. system D. None of above

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ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

ECAT Chemistry Chapter 7 Thermo Chemistry

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

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

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

Neutralization of a strong acid with a strong base is

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

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

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

By state, we mean the

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

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

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

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

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

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

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

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

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

The majority of reactions which give stable products are

In endothermic reactions, the heat content of the:

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

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

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

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

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

Work is a

Neutralization of a strong acid with a strong abase is:

Which one of the following is not related to spontaneous process

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

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

Burning of coal and hydrocarbon in air are examples of :

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ECAT Chemistry Chapter 7 Important MCQ's

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