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What do you understand by concrete and R...

What do you understand by concrete and RCC ?

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ICSE-THE s - BLOCK ELEMENTS-SHORT ANSWER TYPE QUESTIONS
  1. Describe the industrial uses of lime and limestone.

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

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  3. What do you understand by concrete and RCC ?

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

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

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

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

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

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

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

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  11. Why does the following reaction proceed better with KF than with ...

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  12. The average composition of portland cement is

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  13. Differentiate between quicklime and Slaked lime.

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  14. Differentiate between lime and lime-water.

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  15. Differentiate between slaked lime and lime water

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  16. Complete the following equation for the reaction between Ca + H2O

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  17. Complete the following equation for the reaction between Ca(OH)2 + Cl2

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  18. Complete the following equation for the reaction between BeO + NaOH.

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  19. Complete the following equation for the reaction between BaO2 + H2SO4.

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  20. How is magnesium chloride obtained from carnallite?

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