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Why the electron affinity of chlorine is...

Why the electron affinity of chlorine is higher than that fluorine?

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UNITED BOOK HOUSE-QUESTION PAPERS 2016-EXERCISE
  1. Which of the following two elements have a diagonal relation ship? Li,...

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  2. Between 29Cu and 19K which one has higher ionisation enthalpy and why?

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  3. Why the electron affinity of chlorine is higher than that fluorine?

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  4. Arrange the following oxides according to their increase acidity- LiO,...

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  5. Arrange the following compounds according to their increase of melting...

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

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  7. Explain : NCl5 does not exists but PCl5 exists.

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

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  9. Why the falling liquid drop is spherical in nature?

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  10. In a 10 litre volumetric flask contains 1 gram He and 6.4 and gram O2 ...

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  11. If the standard formation enthalpy of CS2, CO2 and SO2 are 117 kJ mol^...

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  12. Write Hess's law.

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  13. Judge the spontaneity of the following reaction at 298 K temperature a...

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  14. Mention the oxidation number of two chlorine atoms in Ca(OCl)Cl molecu...

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

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  16. What is the oxidation number of N atom is NaN3 molecule?

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  17. Balance the following chemical equation by ion electron method : MnO...

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  18. A water sample contains 1 millimole ofMg^(2+) ion per litre. calculate...

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  19. What do you understand by "Trailing of Mercury?

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  20. What do most of the lithium salts are present as hydrate one?

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