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What happen when plaster of Paris is ...

What happen when
plaster of Paris is heated above 473 K ?

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ICSE-THE s - BLOCK ELEMENTS-SHORT ANSWER TYPE QUESTIONS
  1. What happens when carbon dioxide is passed through lime water?

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  2. Slaked lime reacts with chlorine to give

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  3. What happen when plaster of Paris is heated above 473 K ?

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  4. What happens when excess of CO2 is passed in lime water and the soluti...

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  5. Describe the action of chlorine on lime and milk of lime.

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  6. What is gypsum and what is the effect of heat on it?

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  7. The average composition of portland cement is

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  8. What are the main chemical constituents of cement?

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  9. Give an account of the chemical reactions which take place in the rota...

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  10. Why does cement set to a very hard mass when mixed with water and allo...

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  11. Describe the industrial uses of lime and limestone.

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  12. Why is cement clinker obtained from rotary Kiln mixed with gypsum?

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  13. What do you understand by concrete and RCC ?

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  14. Write three general characteristics of the elements of s-block of the ...

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  15. The alkali metals follow the noble gases in their atomic structure. Wh...

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  16. List three properties of lithium in which it differs from the rest of ...

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  17. What happens when (i) sodium metal is dropped in water? (ii) sodiu...

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  18. What happens when (i) sodium metal is dropped in water? (ii) sodiu...

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  19. What happens when (i) sodium metal is dropped in water? (ii) sodiu...

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  20. When an alkali metal dissolves in liquid ammonia the solution can acqu...

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