Chemical Energetics MCQ with Answers

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Chemical Energetics MCQ with Answers. We covered all the Chemical Energetics MCQ with Answers in this post for free so that you can practice well for the exam.

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Energetics MCQ for Students

Energy stored in the molecules is known as

1. Heat energy

2. Light energy

3. Internal energy

4. Kinetic energy

Option 3 – Internal energy

Internal energy of a substance depends on

1. number of atoms present in a molecule

2. number of molecules present in a substance

3. chemical structure and physical state

4. none of these

Option 3 – chemical structure and physical state

The energy required in breaking a mole of H-H bond is

1. 104 kcal

2.62 kcal

3.57.8 kcal

4. 10.3 kcal

Option 1 – 104 kcal

An example for naturally occurring endothermic reaction is

1. respiration

2. electrolysis of water

3. photosynthesis

4. none of these

Option 3 – photosynthesis

The bond energy required to break one mole of HCl is

1. 103 kcal

2. 104 kcal

3. 44 kcal

4. 300 kcal

Option 1 – 103 kcal

Formation of ammonia is an example of

1. endothermic reaction

2. exothermic reaction

3. both (1) and (2)

4. none of these

Option 2 – exothermic reaction

Formation of nitric oxide is an example for

1. endothermic reaction

2. exothermic reaction

3. both (1) and (2)

4. none of these

Option 1 – endothermic reaction

Plants synthesise one of the following during photosynthesis.

1. Hydrogen

2. Chlorophyl

3. Water vapour

4. Starch

Option 4 – Starch

Energy is released in one of the following reactions.

1. Decomposition reactions

2. Endothermic reactions

3. Exothermic reactions

4. None of these

Option 3 – Exothermic reactions

We covered all the chemical energetics MCQ with answers above in this post for free so that you can practice well for the exam.

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