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What are alloys? Name the metals used fo...

What are alloys? Name the metals used for the formation of bronze.

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R G PUBLICATION-H.S. Question papers of AHSEC,2019-Exercise
  1. For a reaction: 2NH3(g) overset(Pt)rarrN2(g) + 3H2(g) Rate = K, Write...

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  2. For a reaction: 2NH3(g) overset(Pt)rarrN2(g) + 3H2(g) Rate = K, Write...

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  3. What are alloys? Name the metals used for the formation of bronze.

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  4. Zn^(2+) salts are colourless while Cu^(2+) salts are coloured. Give re...

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  5. Calculate the number of unpaired electrons in Cr^(3+) and V^(3+) ions.

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  6. How will you convert the following? Give chemical equations only. Etha...

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  7. How will you convert the following? Give chemical equations only. Benz...

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  8. How will you convert the following? Give chemical equations only. Anil...

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  9. Give reasons : n-Butyl bromide has higher boiling point than t-Butyl b...

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  10. Why racimic mixture is optically inactive?

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  11. What are ambident nucleophiles? Give two examples of it. Give reason f...

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  12. Aniline does not undergo Friedel-Crafts reaction. why?

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  13. A compound forms hexagonal close packed (hcp) structure. What is the t...

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  14. A compound is formed by two elements M and N. The elements N forms ccp...

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  15. Calculate the efficiency of packing in case of a metal crystal for sim...

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  16. What will be the effect of temperature on rate constant?

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  17. A first order reaction has a rate constant of 10^(-2)s^( -1). How much...

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  18. Give reason why a finely divided substance is more effective as an ads...

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  19. What is an adsorption isotherm? In reference to Freundlich adsorption ...

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  20. Explain the role of the following in the processes mentioned: Depressa...

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