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Choose from the following list of substances, as to what matches the description given below: [Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum). (i) A black powdery substance used for the reduction of zinc oxide during its extraction. (ii) The substance is an alloy of zinc, copper and tin.

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Name the black powdery substance used for the reduction of zinc oxide during its extraction.

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Choose from the list of substances, as to what matches the description : [Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum). An aqueous salt solution used for testing sulphate radical.

Choose from the following list of substances, as to what matches the description given below : [Acetylene gas, aqua fortis, coke, brass, barium chloride, bronze, platinum] A gaseous hydrocarbon commonly used for welding purposes An aqueous salt solution used for testing sulphate radical. A black, powdery substance used for the reduction of zinc oxide during its extraction. A catalyst used in the manufacture of nitric acid by Ostwald's process. The substance is an alloy of zinc, copper and tin.

Choose from the list of substances - Acetylene gas, ayua fortis, coke, brass, barium chloride, bronze, platinum The substance which is an alloy of zinc, copper and tin.

Choose from the list of substances - Acetylene gas, aqua fortis , coke , brass , barium chloride , bronze, platinum. An aqueous salt solution used for testing sulphate radical.

Select from the list the gas that matches the description given in the following case : (ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne) This gas is used as a reducing agent in reducing copper oxide to copper.

Choosing the substances from the list given below, write balanced chemical equations for the reactions which would be used in the laboratory to obtain the following salts: Zinc carbonate

Choosing the substances from the list given below, write balanced chemical equations for the reactions which would be used in the laboratory to obtain the following salts: Copper(II) sulphate

Choosing the substances from the list given below, write balanced chemical equations for the reactions which would be used in the laboratory to obtain the following salts: Iron(II) sulphate.

ICSE-CHEMISTRY 2011-SECTION-II
  1. Choose from the following list of substances, as to what matches the d...

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  2. Differentiate between electrical conductivity of copper sulphate solut...

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  3. Sodium hydroxide solution is added to the solutions containing the ion...

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  4. During the electrolysis of copper (II) sulphate solution using platinu...

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  5. During the electrolysis of copper (II) sulphate solution using platinu...

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  6. During the electrolysis of copper (II) sulphate solution using platinu...

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

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  8. What is the difference between calcination and roasting?

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  9. Name the process used for the enrichment of sulphide ore.

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  10. Write the chemical formulae of one main ore of iron and aluminium .

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  11. Write the constituents of electrolyte for the extraction of aluminium.

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  12. The diagram shows an experimental set up for the laboratory preparatio...

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  13. The diagram shows an experimental set up for the laboratory preparatio...

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  14. The diagram shows an experimental set up for the laboratory preparatio...

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  15. The diagram shows an experimental set up for the laboratory preparatio...

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  16. The diagram shows an experimental set up for the laboratory preparatio...

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  17. An organic compound with vapour density = 94 contains C=12.67%, H = ...

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  18. Calcuate the mass of 10^(22) atoms of sulphur. [ Atocmi mass S=32,...

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  19. Calculate the mass of 0.1 mole of carbon dioxide. [Atomic mass : S...

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  20. In the laboratory preparation of hydrochloric acid, HCl gas is dissolv...

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  21. In the laboratory preparation of hydrochloric acid, HCl gas is dissolv...

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