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Is the electronegativity of Sn^(2+) and ...

Is the electronegativity of `Sn^(2+)` and `Sn^(4+)` equal or different ? Explain .

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CHHAYA PUBLICATION-PREVIOUS YEAR QUESTION PAPER 2017-WBCHSE 2017 (SECTION II)
  1. Calculate the equivalent weight of phosphate radical .

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  2. Arrange the following ions in ascending order of radius : Na^(+) , F^(...

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  3. Is the electronegativity of Sn^(2+) and Sn^(4+) equal or different ? E...

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  4. State the third law of thermodynamics .

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  5. Draw the structure of an aromatic compound having molecular formula C(...

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  6. A polymer contains 0.16 % of sulfur by weight . What is the minimum mo...

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  7. Calculate the wavelength of H(alpha) and H(beta) lines in Balmer serie...

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  8. When an electron jumps down from 5th Bohr orbit to 3rd Bohr orbit in H...

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  9. Explain the order of basicity of the following compounds : (a) CH(3)...

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  10. Write short notes on Eutrophication .

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  11. State Pauli's exclusion principle .

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  12. How many number of electrons are present iin one HClO(4) molecule ?

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  13. What is the oxidation state of Tl in the compound TlI(3) ?

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  14. Which is stronger oxidising agent between CO(2) and PbO(2) and why ?

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  15. Which one is more stable between BCl(3) and TlCl(3) and why ?

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  16. What is the oxidation state of Zn in Zn-Hg ?

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  17. Calculate the bond order of [He-H]^(+) from molecular orbital theory .

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  18. Both Br(2) (g) and NO(2) (g) are reddish brown gaseous substances . Ho...

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  19. What will be the order of covalent character of the following compoun...

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  20. Write the van der Waals equation for real gas ? Write the unit of a a...

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