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

    Quick Quiz

    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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