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Explain why : Fused CaCl2 or conc. H2SO4...

Explain why : Fused `CaCl_2` or conc. `H_2SO_4` is used in a desiccator.

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ICSE-SPECIMEN PAPER 2-SECTION -II
  1. Complete the table by writing the following as basic and acidic radica...

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  2. State the cause of acid rain and mention its impact.

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  3. Explain why : Fused CaCl2 or conc. H2SO4 is used in a desiccator.

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  4. Explain why? conc. sulphuric acid should be stoppered.

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  5. Write balanced equations for the following reactions. Water is react...

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  6. Write balanced equations for the following reactions. Steam is passe...

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  7. Write balanced equations for the following reactions. Ammonium dichr...

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  8. Write balanced equations for the following reactions. Lead reacts wi...

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  9. Write balanced equations for the following reactions. Copper reacts ...

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  10. What are isotopes ? Draw the structures of the isotopes of hydrogen.

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  11. Compare three properties of hydrogen which resembles the alkali metals...

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  12. At what centigrade temperature will the volume of a gas at 0^(@)C trip...

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  13. Hydrogen is prepared by Bosch process ? Write the balanced equations...

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  14. Hydrogen is prepared by Bosch process ? How are the products separat...

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  15. Write the name of the product formed and give balanced equation of the...

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  16. Write the name of the product formed and give balanced equation of the...

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  17. Write the name of the product formed and give balanced equation of the...

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  18. Give a general idea of Dobereiner triads with one example.

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  19. State Mendeleev.s periodic law.

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  20. An element X has atomic number 17 and has mass no. 37. Draw its orbi...

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