ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

Top Scorers Of ECAT Chemistry Chapter 7 Thermo Chemistry MCQ`s Test

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M Umer Arain 12 - Nov - 2024 00 Min 13 Sec 120/120
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Abdullah Zubair 21 - Dec - 2024 02 Min 34 Sec 120/120
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Tanzeel Ur Rehman 28 - May - 2024 03 Min 19 Sec 115/120
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Muntasir Khokhar 21 - May - 2024 03 Min 47 Sec 105/120
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Shazi Ansari 05 - Jun - 2024 02 Min 35 Sec 100/120
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Tamshi Sohail 19 - Apr - 2024 10 Min 44 Sec 100/120
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AS creations 16 - Jun - 2026 06 Min 05 Sec 96/120
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Umar Saeed 30 - May - 2024 03 Min 38 Sec 90/120
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hadia ejaz 29 - May - 2024 11 Min 27 Sec 90/120
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Rashida Latif 09 - Jan - 2025 04 Min 07 Sec 85/120
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talha talha 25 - Apr - 2024 05 Min 36 Sec 85/120
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Shajee Haroon 10 - May - 2024 08 Min 54 Sec 85/120

ECAT Chemistry Chapter 7 Important MCQ's

Sr.#	Question	Answer
1	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
2	When no work is done by the system	A. The volume of system decreases B. The volume of system increases C. The volume of system does not change D. None of above
3	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)
4	By state, we mean the	A. Reaction of system B. Scope of a system C. Condition of a system D. None of above
5	Reaction between Zn and CuSO₄can be called a system under	A. Surrounding B. Observation C. system D. None of above
6	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
7	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).
8	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:	A. Henry's law. B. Joule's principle. C. Hess's law. D. Law of conservation of energy.
9	If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air	A. remains constant B. increases C. decreases D. remain unchanged
10	Which one of the following is not related to spontaneous process	A. Unidirectional B. Real C. Irreversible D. Artificial

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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

The majority of reactions which give stable products are

Work is a

Burning of coal and hydrocarbon in air are examples of :

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

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

Neutralization of a strong acid with a strong base is

In endothermic reactions, the heat contents of the surrounding air

By state, we mean the

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

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

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

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

Reaction between Zn and CuSO4can be called a system under

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

Burning of coal and hydrocarbon in air are examples of

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

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

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

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

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

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

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

Calorie is equivalent to

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

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

Neutralization of a strong acid with a strong abase is:

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

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

The majority of reactions which give stable products are:

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

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Top Scorers Of ECAT Chemistry Chapter 7 Thermo Chemistry MCQ`s Test

ECAT Chemistry Chapter 7 Important MCQ's

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

Reaction between Zn and CuSO₄can be called a system under

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