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Fill in the blank from the choices given within brackets :
Ammonia gas is collected by ........... (an upward displacement of air, a downward displacement of water, a downward displacement of air)

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A downward displacement of air
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ICSE-CHEMISTRY 2014-SECTION-II
  1. Fill in the blank from the choices given within brackets : Ammonia g...

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  2. State one appropriate observation for the following: When dilute hyd...

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  3. State your observation in the following case: When excess sodium hyd...

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  4. At the cathode when acidified aqueous copper sulphate solution ...

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  5. State your observation in the following case: When calcium hydroxide i...

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  6. State your observation in the following case : When moist starch i...

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  7. Study the figure given below and answer the question that follow : ...

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  8. Study the figure given below and answer the questions that follow : ...

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  9. Study the figure given below and answer the questions that follow : ...

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  10. Name the other ion formed when ammonia dissolves in water.

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  11. Give one test that can be used to detect the presence of the ion produ...

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  12. State the conditions required for the following reactions to take plac...

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  13. State the conditions required for the following reactions to take plac...

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  14. State the condition required for the following reaction to take place ...

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  15. State the conditions required for the following reaction to take place...

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  16. State the main components of the following alloys: Brass

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  17. State the main components of the following alloys: Duralumin

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  18. State the main components of the following alloys: Bronze

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  19. Give balanced equation for the following: Laboratory preparation of ...

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  20. Give balanced equations for the following: (i) Preparation of ethano...

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  21. Draw the structural formula for the following compounds : Ethanol

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