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Give example of a molecule in which cent...

Give example of a molecule in which central atom'contains more than octet.

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UNITED BOOK HOUSE-TECHNO INDIA GROUP ACADEMIA,SOUTH KOLKATA QUESTION PAPER-EXERCISE
  1. Although ethanoic acid and ethanol are covalent compounds they are sol...

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  2. Indicate the nature of bonds in the compound NH4Cl.

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  3. Give example of a molecule in which central atom'contains more than oc...

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  4. Which one is more polar NF3 or NH3? Explain

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  5. Oxygen gas is present,in a 1.0 L flask at a pressure of 7.6 xx 10^(-10...

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  6. How compressibility factor help in understanding the deviation of real...

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  7. Deduce the relationship between partial pressure, mole fraction and to...

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  8. Write the Vander Walls equation for n'mole of the real gas.

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  9. Assuming the reactant and product gases of chemical reaction as ideal,...

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  10. Give example of a reaction where DeltaH = DeltaU.

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  11. Calculate the resonance energy of N2O from the following data Delta1 H...

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  12. Balance the following equation by ion electron method :Cr2O7^(2-) + H^...

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  13. KMnO4 oxidises oxalic acid in acid medium. Calculate the number of CO2...

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  14. Explain why Hydrated barium peroxide is used in the preparation of hyd...

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  15. Why is Li2CO3 decomposed at a lower temperature whereas, Na2CO3 at hig...

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  16. Why are lithium salts are commonly hydrated and those of the other alk...

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  17. Why aqueous solution of Na2CO3 is alkaline.

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  18. Write the balance equations for reactions between water and potassium ...

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  19. How would you explain BaO is soluble but BaSO4 is insoluble is water.

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  20. Give chemical identity of plaster of paris.

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