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State Huckells-rule for aromaticity....

State Huckells-rule for aromaticity.

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 14 -EXERCISE
  1. What do you mean by extensive property of system?

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  2. Write the definition of entropy.

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  3. State Huckells-rule for aromaticity.

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  4. How much quantity of water will be produced when electric spark is mad...

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  5. Weight of 0.1 mole of X2Y is 4.4 gm and 0.05 mole of XY2 is 2.3 gm. fi...

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  6. Give the difference between orbit and orbital.

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  7. Dimond is non conductor of electricity but Graphatite is a conductor o...

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  8. What happen when boran is strongly heated with Concentrated nitric aci...

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  9. What is TEL? State one of its harmful effects.

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  10. Show from Hiickell rule of aromaticity that cyclo propenye cation is a...

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  11. Explain that Fe^3+ is more stable than Fe^2+. State Atifbau principle....

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  12. How many orbitals are possible for n = 3, State the notations used for...

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  13. Why is the Electron affinity of Be and Mg endothermic in nature?

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  14. State three Characteristics of 'd' block element.

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  15. Write the Lewis dot structures for the following compounds: NaCN, N2O,...

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  16. Which one is more stronger and why between sigma and pi bond? State th...

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  17. What do you mean by partial pressure of gas? State Daltors partial pre...

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  18. What do you mean by surfactant? Give example. WJiat is the magnitude o...

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  19. Write two differences between reversible and irreversible process? Why...

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  20. It the free energy change for a reaction at 25^@C be 5.4 Kj Calculate ...

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