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State your observations when : Dilute ...

State your observations when :
Dilute hydrochloric acid reacts with sodium sulphite.

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Gas evolved : `SO_2` (Sulphur dioxide)
Chemical test : It changes orange acidified potassium dichromate green.
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ICSE-SAMPLE PAPER 2016-SECTION-II
  1. Fill in the blanks using the appropriate words given below: (Sulphur...

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  2. Fill in the blanks using the appropriate words given below: (Sulphur...

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  3. State your observations when : Dilute hydrochloric acid reacts with ...

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  4. State your observations when : Dilute hydrochloric acid reacts with ...

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  5. State your observations when ammonium hydroxide solution is added drop...

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  6. State your observations when ammonium hydroxide solution is added drop...

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  7. Write equations for the reactions taking place at the two electrodes (...

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  8. Write equations for the reactions taking place at the two electrodes (...

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  9. Name the product formed at the anode during the electrolysis of acidif...

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  10. Name the metallic ions that should be present in the electrolyte when ...

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  11. A gas cylinder contains 12 xx 10^(24) molecules of oxygen gas. If Av...

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  12. A gas cylinder contains 12 xx 10^(24) molecules of oxygen gas. If Av...

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

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  14. The equation 4NH3 + 5O2 rarr 4NO + 6H2O, represents the catalytic oxid...

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  15. By drawing an electron dot diagram show the formation of Ammonium Ion ...

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  16. Name the gas evolved when the following mixture is heated : Calcium ...

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  17. Name the gas evolved when the following mixtures are heated : Sodiu...

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  18. Write balanced chemical equations for each of the following: When ex...

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  19. Write balanced chemical equations for each of the following: An equa...

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  20. A, B, C and D summarize the properties of sulphuric acid depending on ...

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