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State one appropriate observation for th...

State one appropriate observation for the following:
When dilute hydrochloric acid is added to sodium carbonate crystals.

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A colourless, odourless gas with brisk effervescence is evolved and when tested turns moist blue litmus red and lime water milky.
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State one appropriate observation for the following: When dilute hydrochloric acid is added to calcium carbonate crystals.

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ICSE-CHEMISTRY 2014-SECTION-II
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  2. State your observation in the following case: When excess sodium hyd...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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