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What is the packing efficiency of bcc la...

What is the packing efficiency of bcc lattice? If the diagonal of bcc unit cell be `8sqrt3` find the radius of the atom.

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UNITED BOOK HOUSE-MODEL PAPER 14-EXERCISE
  1. [Ni(CO)4] is tetrahedral but diamgagnetic why?

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  2. State the structure and name of monomer unit of natural rubber.

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  3. What is the packing efficiency of bcc lattice? If the diagonal of bcc ...

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  4. A metal forms a face centgred cubic lattice. If the radius of the atom...

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  5. 34.2 gm Sucrose (Molecular wt 342) is dissolved in 1000 gm of water. F...

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  6. Find the osmotic pressure of a solution at 27^@C when 10 gm Glucose an...

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  7. Calculate the EMF of the electrochemical cell for which the following ...

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  8. Calculate the E.M.F. for the cell given below and identify the cathod ...

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  9. Why CuO can be carbon reduced but not CaO? What is gaung?

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  10. Write differences between roasting and calcination. Name a basic flux?

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  11. CuCl2 is blue coloured but CuCl colourless. Explain why? State the gen...

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  12. Name the aldehyde which response in haloform reaction

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  13. How would you chemically differ ethyl chloride and chlorobenzene?

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  14. Give one example :- Carbyl-amine reacion.

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  15. Give one example :- Dkiazo coupling reaction.

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  16. Give one example :- Hoffmann degradation reaction

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  17. State the chemical equation when potassium thalimide is strongly heate...

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  18. Identify A-F CH3COCH3 overset(Mg-Hg)underset(dry ether) rarr A

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  19. Identify B CH3CO2H overset(Red P + Br2)underset(H2O) rarr B

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  20. Identify A-F CH3CHO overset(Al(OC2H5)3)underset() rarr C

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