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In what respect does hydrogen differ fro...

In what respect does hydrogen differ from:
halogens?

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Hydrogen atom has only one shell, but halogens have two or more shells.
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ICSE-STUDY OF THE FIRST ELEMENT - HYDROGEN-TOPIC 1 Hydrogen and its Laboratory Preparation (2 MARK QUESTIONS)
  1. Justify the position of hydrogen in the periodic table on the basis of...

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  2. In what respect does hydrogen differ from: alkali metals

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  3. In what respect does hydrogen differ from: halogens?

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  4. Write balanced equations and give your observations when the following...

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  5. Write balanced equations and give your observations when the following...

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  6. Write balanced equations and give your observations when the following...

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  7. Write balanced equations and give your observations when the following...

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  8. From the knowledge of activity series, name a metal which shows the fo...

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  9. From the knowledge of activity series, name a metal which shows the fo...

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  10. From the knowledge of activity series, name a metal which shows the fo...

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  11. From the knowledge of activity series, name a metal which shows the fo...

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  12. Which test should be made before collecting hydrogen in a gas jar?

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  13. Why is nitric acid not used in the preparation of hydrogen?

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

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  15. What happens when a metal and a non metal reacts with steam? Name the ...

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

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

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  18. If the following are kept in closed vessels at over 400^@C, what would...

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  19. If the following are kept in closed vessels at over 400^@C, what would...

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  20. (a) A metal in the powdered form reacts very slowly with the boiling w...

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