Chemistry MCQs with Answers

This is Chemistry MCQs section with detailed explanations for preparation of screening tests, interviews for government jobs. In this section candidate will learn MCQs on variety of topics from the subject.

1. 1 The soul of chemistry is dealing with___________?
   

   1. Internal structural changes in matter

   2. Composition of matter

   3. Properties of matter

   4. Composition and properties of matter

   See Answer

   Added By: Admin

   Answer

   : Composition and properties of matter

   Explanation

   :
   N/A

2. 2 The radioactive isotope of hydrogen is called___________?
   

   1. tritium

   2. deuterium

   3. protium

   4. ortho-hydrogen

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   Answer

   : tritium

   Explanation

   :
   N/A

3. 3 Electron was discovered by?
   

   1. Michael Faraday

   2. James Maxwell

   3. Yuri Gagarin

   4. J.J Thomson

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   Added By: Admin

   Answer

   : J.J Thomson

   Explanation

   :
   N/A

4. 4 Sodium carbonate is produced by____________?
   

   1. haber process

   2. Amonia solvay process

   3. decons process

   4. lead chamber process

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   Added By: Admin

   Answer

   : Amonia solvay process

   Explanation

   :
   N/A

5. 5 Which of the following is a substance?
   

   1. Sea water

   2. Brass

   3. Tape water

   4. Graphite

   5. Sand

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   Answer

   : Graphite

   Explanation

   :
   N/A

6. 6 Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?
   

   1. ionic substances

   2. metallic substances

   3. molecular solids

   4. covalent network solids

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   Answer

   : metallic substances

   Explanation

   :
   N/A

7. 7 All of the following substances are crystalline except_____________?
   

   1. Ice

   2. Diamond

   3. Sucrose

   4. Plastic

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   Answer

   : Plastic

   Explanation

   :
   N/A

8. 8 Covalent network crystals have_____________?
   

   1. higher melting point then molecular crystals

   2. lower melting point then molecular crystals

   3. discrete molecules linked by Van der waals forces

   4. hydrogen bonding

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   Answer

   : higher melting point then molecular crystals

   Explanation

   :
   N/A

9. 9 What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called?
   

   1. Paint

   2. Glass

   3. Gun Powder

   4. Cement

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   Added By: Admin

   Answer

   : Gun Powder

   Explanation

   :
   N/A

10. 10 Diameter of an atom is in the order of________________?
    

    1. 0.2m

    2. 0.2mm

    3. 0.2nm

    4. 0.2pm

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    Added By: Admin

    Answer

    : 0.2nm

    Explanation

    :
    N/A