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State one relevant observation for the following reaction : Action of concentrated Sulphuric acid on hydrated copper sulphate.

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The blue crystals are changed into white powder as water is removed. Concentrated sulphuric acid takes away the water molecules and the copper sulphate becomes anhydrous.
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ICSE-SAMPLE PAPER 2017-SECTION-II
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  3. Arrange the following as per the instruction given in the brackets: ...

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  4. F, Cl, Br (Increasing electronegativity)

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  9. How will you distinguish between dilute hydrochloric acid and dilute s...

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  10. Identify the salts P from the observations given below: On perform...

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  11. Identify the salts Q from the observations given below: When dilute...

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  13. Draw an electron dot diagram to show the formation of each of the foll...

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  15. State the observations at the anode and at the cathode during the elec...

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  17. Select the ion in each case, that would get selectively discharged fro...

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  19. Write balanced chemical equations to show: (i) The oxidizing action...

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