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Compare hydrogen and halogens on the bas...

Compare hydrogen and halogens on the basis of:
ion formation

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Hydrogen and halogens both form anions as they are 1 electron less to attain inert gas configuration.
`H+e^(-) to H^(-)`
`Cl + e^(-) to Cl^(-)`
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Assertion : In several properties, hydrogen resembles halogens of group 17. Reason : Both hydrogen and halogens are short of one electron to attain a stable configuration similar to those of noble gases.

ICSE-STUDY OF THE FIRST ELEMENT - HYDROGEN-TOPIC 1 Hydrogen and its Laboratory Preparation (5 MARK QUESTIONS)
  1. Compare hydrogen and halogens on the basis of: physical state

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  2. Compare hydrogen and halogens on the basis of: ion formation

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  3. Compare hydrogen and halogens on the basis of: valency

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  4. Compare hydrogen and halogens on the basis of reaction with oxygen

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  5. Which metal is preferred for preparation of hydrogen from water?

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  6. Why Zinc and aluminium are considered to have unique nature. Give bala...

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  7. For laboratory preparation of hydrogen, give the following: materi...

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  8. For laboratory preparation of hydrogen, give the following: method ...

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  9. For laboratory preparation of hydrogen, give the following: chemica...

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  10. For laboratory preparation of hydrogen, give the following: a) mate...

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  11. Name the impurities present in hydrogen prepared in the laboratory.

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  12. Name the impurities present in hydrogen prepared in the laboratory. W...

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  13. Complete and balance the following reactions. Na + H2 O to +

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  14. Complete and balance the following reactions. Ca + H2 O to +

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  15. Complete and balance the following equation : Mg +H2 O to

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  16. Complete and balance the following reactions. Zn + H2 O to +

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  17. Complete and balance the following equation : Fe + H2 O

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  18. Complete and balance the equations . Zn+2HCl to ……….. + ………..

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  19. Complete and balance the following reactions. Al + H2 SO4 to +

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  20. Complete and balance the following reactions. Fe + HCl to +

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