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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Sania Iqbal 14 - May - 2024 04 Min 47 Sec 100/120
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Masood Muneer 26 - May - 2024 04 Min 50 Sec 100/120
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Tamshi Sohail 19 - Apr - 2024 10 Min 44 Sec 100/120
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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	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	If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air:	A. Remains constant. B. Increase. C. Decreases. D. Remain unchanged.
3	When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear	A. Pink B. Purple C. Blue D. Brown
4	By comparing both initial and final states of the system, we can describe the change taking place in the	A. Surrounding B. Both a and c C. System D. None of above
5	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
6	Which of the following statements is contrary to the first law of themodynamics	A. Energy can neither be created nor destroyed B. One form of energy can be transferred into an equivalent amount of other kinds of energy C. In an adiabatic process, the work done is independent of its path D. Continuous production of mechanical work without supplying and equivalent amount of heat is possible
7	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.
8	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
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	The majority of reactions which give stable products are:	A. Exothermic. B. Isothermal. C. Endothermic. D. Both (b) and (c).

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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

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

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

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

Calorie is equivalent to :

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

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

Reaction between Zn and CuSO4can be called a system under

Burning of coal and hydrocarbon in air are examples of :

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

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

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

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

Calorie is equivalent to

A reaction will also be called a spontaneous if :

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 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:

In endothermic reactions, the heat content of the:

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

The majority of reactions which give stable products are

When no work is done by the system

By state, we mean the

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

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

Which one of the following is not related to spontaneous process

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

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

In endothermic reactions, the heat contents of the:

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

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

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

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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:

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: