Chemistry and States Of Matter

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 2020.04.02 20:32 Water, Milk, Kerosene. Mercury are the examples 01 2) Liquids VI CHEMISTRII 4) All the above 3) Gases 1) Solids In solids, cooling reduces molecular energy, causing lowering of vibration leadingt 4) None 3) No change 1) Expansion 2) Contraction Due to the continuous motion of particles of matter it possess 2) Kinetic energy 4) None 3) Both 1 & 2 1) Potential energy Force between the same kind of particles is called 1) Cohesive force 4) None 3) Nuclear force 2) Adhesive force . The particles of matter which possess kinetic energy are in the state of 1) Continuous motion 2) Discontinuous motion 3) Static 4) All the above B. Which of the following conditions should be altered to change the state of matter from state to another ? 1) Pressure 2) Volume 3) Temperature 4) All the above 9. What happens to melting point of solid when impurities are added to the pure solid ? 1) Melting point increases 2) Melting point decreases 3) Remains the same 4) None D. What will happen if molecules become free to slip over one another and flow ? I) Liquid turns into solid 2) Solid turns into liquid 3) Solid turns into gas 4) All the above 1. Absorption of heat energy during melting will increase the vibrations of molecules & t intermolecular forces will 1) Decrease 2) Increase 3) Remain the same Due to weakening of intermolecular forces in the process of melting point, the mo 4) None 2. start vibrating 1) Less vigorously 2) More vigorously 3) Remains the same 3. Boiling will take place by 4) None 1)Absorbing heat energy 3) Either 1 or 2 2) Removing heat energy 24. Presence of impurities will 4) All the above 1) Decrease the boiling point 3) No change 2) Increase the boiling poir 

Subject
Level
Highschool
Grade
8
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