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Both Br(2) (g) and NO(2) (g) are reddish...

Both `Br_(2) (g)` and `NO_(2) (g)` are reddish brown gaseous substances . How will you chemically distinguish between them ?

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CHHAYA PUBLICATION-PREVIOUS YEAR QUESTION PAPER 2017-WBCHSE 2017 (SECTION II)
  1. What is the oxidation state of Zn in Zn-Hg ?

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

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

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

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

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  6. What will be the ratio of rate of diffusion of ""(235) UF(6) and ""^(2...

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  7. Heat of combustion of benzene is x J * mol^(-1) . Heat of formation of...

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  8. Boiling point of ethanol is 78.4 ^(@) C . Change in enthalpy duri...

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  9. Calculate the oxidation state of sulfur in H(2)SO(5) .

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  10. P(4) + 3 NaOH + 3 H(2) O to PH(3) + 3 NaH(2) PO(2) What is the equival...

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  11. What is the oxidation state of Cr in CrO(5) ?

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  12. Balance the equation by ion-electron method : MnO(4)^(-) + SO(2) + ...

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  13. BaO(2) is a peroxide , but MnO(2) is not a peroxide Explain .

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  14. What is Calgon ?

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  15. What happens when LiNO(3) is strongly heated ? Write down the equation...

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  16. Which two alkaline earth metals cannot be identified by flame test ?

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  17. Write down the perparation of Plaster of Paris with equation .

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  18. Is-2- hydroxypropanoic acid optically active ? Explain .

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  19. 20 g of NaOH is present in 250 mL of H(2) O . Calculate the active ma...

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  20. State Le-Chateliers principle.

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