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Name two metals which can displace hydro...

Name two metals which can displace hydrogen from acids.

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Zinc, Magnesium
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Name one metal which can displace hydrogen from dilute acids and one metal which cannot.

State two metals which displace hydrogen from dilute acids and two metals which do not do so.

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MODERN PUBLICATION-HYDROGEN-REVISION EXERCISES (Very Short Answer Questions)
  1. The element having the higher boiling point is

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  2. What is heavy water ?

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  3. Name two metals which can displace hydrogen from acids.

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  4. Which isotope of hydrogen is radioactive in nature?

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  5. a. What does [H(9)O(4)]^(o+) stand for ? Draw its structures. b. Can...

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  6. What is meant by autoprotolysis of water ?

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  7. Which of the following is the most reactive towards ring nitration ?

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  8. How does O(3) react with lead sulphide ? Write chemical equation.

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  9. Bleaching action of H(2)O(2) is due to its :

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  10. What happens when phosphoric acid is heated ?

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  11. Give an example of (i) ionic hydride, (ii) covalent hydride.

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  12. Calcium carbide reacts with water to produce

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  13. Complete the following reactions: (i) XeF2 + H2 to , (ii) XeF6 + Si...

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  14. Complete the following reactions: (i) XeF2 + H2 to , (ii) XeF6 + Si...

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  15. Complete the following reactions: (i) CaO(s)+H(2)O(l)to Na(2)O(s)...

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  16. Why do lakes freeze from water top towards bottom?

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  17. Explain why water has high boling and melting points are compared to H...

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  18. Write chemical reactions to show the amphoteric nature of water.

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  19. What is meant by dispersion of light ?

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  20. How is temporary hardness in water removed?

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