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Between ""(29) Cu and ""(19) K which one...

Between `""_(29) Cu` and `""_(19) K` which one has higher ionisation enthalpy and why ?

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CHHAYA PUBLICATION-PREVIOUS YEAR QUESTION PAPER 2016-WBCHSE 2016 SECTION II ( GROUP C)
  1. Between two ions Fe^(2+) & Fe^(3+) , which one is more stable and why ...

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  2. Which of the following two elements have a diagonal relationship ? Li ...

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  3. Between ""(29) Cu and ""(19) K which one has higher ionisation enthalp...

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  4. Why does electron affinity of chlorine is higher than that of fluorine...

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  5. Arrange the foloowing oxides according to their increase of acidity - ...

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

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  7. Between NH(3) and NF(3) which one is more polar and why ?

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  8. Why does the PCl(5) exist but NCl(5) does not ?

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  9. Why does BaSO(4) is not stable in water ?

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  10. For which property of the liquid the shape of a liquid drop is spheric...

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  11. In a 10 litre volumetric flask contains 1 gram He and 6.4 gram O(2) at...

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  12. If the standard formation- enthalpy of CS(2) , CO(2) and SO(2) are 117...

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  13. State Hess's Law .

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

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  15. Mention the oxidation number of two chlorine atoms in Ca(O Cl) Cl mole...

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  16. Balance the chemical equation by oxidation number method : P + NaOH + ...

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  17. What is the oxidation number of N atom is NaN(3) molecule ?

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  18. Balance the chemical equation by ion electron method : MnO(4)^(1-) + (...

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  19. A water sample contains 1 millimol of Mg^(2+) ion per litre . Calculat...

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  20. What do you understand by 'Trailing of Mercury' ?

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