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State one obervation for the following :...

State one obervation for the following : Ammonia gas is passed over heated copper [II] oxide.

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Black copper oxide change to red copper.
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What would you observe in each of the following cases? When carbon monoxide is passed over heated copper oxide.

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Name the gas evolved when : Ammonia reacts with heated copper [II] oxide

What is observed when carbon monoxide is passed over heated copper oxide.

State one relevant observation for the following: When ammonia gas is burnt in an atmosphere of excess oxygen.

State one observation for the following: Nitric oxide is passed through acidified freshly prepared ferrous sulphate solution.

Ammonia gas can evolve by heating :

State one relevant observation for the following: When hydrogen sulphide gas is passed through lead acetate solution.

State your observations in each of the following: Ammonium sulphate is heated with sodium hydroxide soln. and the gas evolved bubbled through copper sulphate solution

What happens when (write balanced chemical equations): Ammonia is passed over hot copper (II) oxide.

ICSE-SAMPLE QUESTION PAPER 5-Section II
  1. State one obervation for the following : Ammonia gas is passed over he...

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  2. Copper sulphate solution is electrolysed using copper electrodes. Stud...

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  3. Copper sulphate solution is electrolysed using copper electrodes. Stud...

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  4. Copper sulphate solution is electrolysed using copper electrodes. Stud...

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  5. The following questions are pertaining to the laboratory preparation o...

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  6. The following questions are pertaining to the laboratory preparation o...

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  7. The following questions are pertaining to the laboratory preparation o...

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  8. The following questions are pertaining to the laboratory preparation o...

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  9. The elements of one short period of the periodic table are given below...

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  10. The elements of one short period of the periodic table are given below...

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  11. The elements of one short period of the periodic table are given below...

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  12. The elements of one short period of the periodic table are given below...

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  13. The elements of one short period of the periodic table are given below...

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  14. Match the salts given in Column I with their . method of preparation g...

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  15. A gaseous hydrocarbon contains 82.76% of carbon. Given that its vapour...

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  16. Find the total percentage of magnesium in magnesium nitrate crystals [...

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  17. The following table shows the tests a student performed on four differ...

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  18. Name a metal which is found abundantly in the earth's crust.

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  19. State one observation: A zinc granule is added to copper sulphate solu...

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  20. Give reasons why copper is used to make hot water tanks and not steel ...

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  21. Write the name and formula of an ore of aluminium.

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