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Hydrogen is a good reducing agent. What ...

Hydrogen is a good reducing agent. What do you understand by this statement ? Explain with the help of copper oxide as an example.

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When hydrogen gas is passed over the hot oxides of metals like copper, lead, zinc, iron, etc., it removes the oxygen from them and thus reduces them to their corresponding metals.
`CuO+H_2 rarr Cu +H_2O`
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S CHAND IIT JEE FOUNDATION-HYDROGEN-SELF ASSESSMENT SHEET
  1. What happens when hydrogen burns in air?

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  2. What is oxy-hydrogen flame?

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  3. Hydrogen is a good reducing agent. What do you understand by this stat...

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  4. What would you observe when equal volumes of hydrogen and chlorine are...

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  5. What happens when hydrogen is bubbled through boiling sulphur?

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  6. How is ammonia formed ?

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  7. What is produced when carbon monoxide and hydrogen react in the presen...

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  8. What is a redox reaction ?

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  9. Give equations to express the reaction between steam and red hot iron

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  10. Give equations to express the reaction between calcium and water

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  11. Give equations to express the reaction between steam and red hot coke

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  12. Hydrogen gas will not reduce:

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  13. The most reactive metal according to the metal activity series is

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  14. Which of the following statements is incorrect about hydrogen?

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  15. Which of the following metals does not give hydrogen with acids ?

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  16. On adding water to sodium, the solution formed is

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  17. Write balanced chemical equation only for the reaction of hydrogen wit...

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  18. Write balanced chemical equation only for the reaction of hydrogen wit...

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  19. Write balanced chemical equation only for the reaction of hydrogen wit...

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  20. Write balanced chemical equation only for the reaction of hydrogen wit...

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