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Write the, equation what happen when:Bor...

Write the, equation what happen when:Borax is' heated with ethanol and cone `H_2SO_4` and the vapour comes out is held to the flame of bunsen burner.

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 11-EXERCISE
  1. Calculate the enthalpy for the reaction at 27^0C. C2 H5 Cl (s) rarr C...

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  2. Calculate Delta H-DeltaU at 25^@C for the reaction:H2(g)+( 1/2)O2(g) =...

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  3. What is the oxidation number of Mn in K2 Mn O4?

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  4. Calculate the oxidation no of * marked atom:*Fe (CO)5

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  5. Balance the equation by oxidation no method :AI + NaOH + H2O rarr NaAl...

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  6. Balance by oxidation number method P4 +NaOH + H2O rarr NaH2 PO2 + PH3...

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  7. What do you mean by Interstitial and non stoichiometric hydrides? Give...

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  8. Why K2 CO3 can’t be prepared by solvey process? What is backing soda?

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  9. What is carbene? How many types of carbene present? Give example.

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  10. 2AB2 (g) = 2AB (g) + B2 (g) if the degree of dissociation and total pr...

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  11. Calculate the pH 0.01 (m) ch3COOH at 25^@C. (Given dissociation con...

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  12. Write the, equation what happen when:Borax is' heated with ethanol and...

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  13. Write the, equation what happen when:Mixture of diborane and Ammonia i...

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  14. State reason :Why born nitrides is called inorganic graphite..

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  15. State reason :BH3 forms dimer.

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  16. Give example of 3-centre-2-electron bond.

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  17. How would you differ chemically:Ethene & Ethyne.

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  18. How would you differ chemically:1 - Butene & 2 - butene.

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  19. Write short note on:Friedel Craft alkylation reaction.

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  20. Write short note on:Aromaticity.

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