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Hydrogen may be prepared in the laborato...

Hydrogen may be prepared in the laboratory by the action of a metal with an acid.
Which of the acids dilute sulphuric, concentrated sulphuric, dilute nitric and concentrated nitric would you choose ? Explain why you would not use the acids you reject.

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ICSE-STUDY OF THE FIRST ELEMENT - HYDROGEN-EXERCISE 6(C)
  1. Which metal is preferred for preparing hydrogen from: steam ? Wri...

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  2. Hydrogen may be prepared in the laboratory by the action of a metal wi...

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  3. Hydrogen may be prepared in the laboratory by the action of a metal wi...

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  4. Hydrogen may be prepared in the laboratory by the action of a metal wi...

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  5. Why are the following metals not used in the lab. Preparation of hydro...

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  6. Why are the following metals not used in the lab. Preparation of hydro...

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  7. Why are the following metals not used in the lab. Preparation of hydro...

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  8. Why are the following metals not used in the lab. Preparation of hydro...

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  9. Based on the reactions of water on metals. arrange the following metal...

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  10. Hydrogen is evolved when dilute HCl reacts with magnesium, but nothing...

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  11. Steam can react with a metal and a non-metal to liberate hydrogen. Giv...

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  12. Hydrogen is obtained by displacement from: dilute sulphuric acid ...

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  13. Hydrogen is obtained by displacement from: dilute hydrochloric acid ...

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  14. Why is copper not used in preparation of hydrogen?

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  15. Give reason for the following: Though lead is above hydrogen in the...

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  16. Give reason for the following: Potassium and sodium are not used fo...

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  17. Name two alkalies that can displace hydrogen. Give balanced equations ...

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

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

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  20. Complete and balance the following reactions. Mg + H2 O to +

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