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Why are the following metals not used in...

Why are the following metals not used in the lab. Preparation of hydrogen?
sodium

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ICSE-STUDY OF THE FIRST ELEMENT - HYDROGEN-EXERCISE 6(C)
  1. Why are the following metals not used in the lab. Preparation of hydro...

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

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

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

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

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

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

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

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

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

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

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

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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 reactions. 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 following reactions. Zn + HCI 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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