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in Chemistry by (46.4k points)

Fill in the blanks with the correct word/s from the bracket. 

1. From the three states of matter, _____ (solids / liquids / gases) expand the least. 

2. Brownian movement is maximum in ____ (gases / solids / liquids). 

3. Cohesive forces are negligible in ____ (liquids / solids / gases) 

4. Matter can change from one state to another by change in ____ [temperature or pressure /temperature only]. 

5. The space between atoms’ [molecules] of solids is ____ [minimum / maximum]. 

6. Intermingling of molecules is called ____ [perforation / diffusion]. 

7. Ice on absorption of heat converts to ‘X’ a process called ____ [vaporization / melting]. ‘X’ changes to water vapour on ____ [heating / cooling]. Water vapour changes back to ‘X’ on ____ [freezing / condensation]. The constant temperature at which ice changes into ‘X’ is called its ____ [fusion point / melting point / boiling point].

1 Answer

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1. From the three states of matter, solids expand the least. 

2. Brownian movement is maximum in gases. 

3. Cohesive forces are negligible in gases. 

4. Matter can change from one state to another by change in temperature or pressure. 

5. The space between atoms [molecules] of solids is minimum. 

6. Intermingling of molecules is called diffusion. 

7. Ice on absorption of heat converts to ‘X’ a process called melting. ‘X’ changes to water vapour on heating. Water vapour changes back to ‘X’ on condensation. The constant temperature at which ice changes into ‘X’ is called its fusion point.

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