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Given the stuctures of A,B and C in the ...

Given the stuctures of A,B and C in the following reactions-
(i) `C_6H_5N_2^+Cl^(-)overset(CuCN)toAoverset(H_2O //H^+)toBunderset(Delta)overset(H_2O //H^+)toC`
(ii) `C_6H_5NO_2overset(Sn+HCl)toAunderset(273K)overset(NaNO_2+HCl)toBunderset(Delta)overset(H_2O //H^+)toC`

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Give the structures of A, B and C in the following reactions: C_6H_5N_2Cl overset(CuCN)to A overset(H_2O //H^(+))toB underset(Delta)overset(NH_3)toC

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-Set -I
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  6. Determine the osmotic pressure of a solution prepared by dissolving 2....

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  7. Calculate the emf of the following cell at 298K: Fe(s) abs(Fe^(2+)(0...

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  8. How would you account for the following? (l) Transition metals exhib...

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  9. Complete the following chemical equations : (i) Cr2O6^(2-)+6Fe^(2+)...

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  10. Specify the oxidation number of the metals in the following coordinati...

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  11. Given the stuctures of A,B and C in the following reactions- (i) C6...

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  12. Write the names and structures of the monomers of the following polyme...

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  13. After watching a programme on TV about the adverse effects of junk foo...

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  14. (a) Which one of the folJowing is a food preservative? Equanil, Mor...

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  15. A reaction is second order in A and first order in B . (i) Write the ...

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  16. For a first order reaction, show that time required for 99% completio...

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  18. Account for the following : (i) Helium is used in diving apparatus. ...

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  19. How will you bring about the following conversions? (1) Propanone t...

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  20. Complete the following reactions : (b) Give simple chemical tests t...

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