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Dimethyl glyoxime in a suitable solvent ...

Dimethyl glyoxime in a suitable solvent was refluxed for 10 minutes with pure pieces of nickel sheet, it will result in

A

Red ppt.

B

Blue ppt.

C

Yellow ppt.

D

no ppt.

Text Solution

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Dimethyl glyoxime gives red ppt. with `Ni^(2+)` ions but not with nickel metal.
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Insulin (C_(2)H_(10)O_(5))_(n) is dissolved in a suitable solvent and the osmotic pressure pi of the solution of various concentration ( in kg//m^(3)) is measured at 20^(@)C . The slpe of a plot of pi against c is found to be 8.134xx10^(-3) ( SI units ). The molecular weight of the insulin ( in kg//mol) is :

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Insulin (C_(2)H_(10)O_(5))_(n) is dissolved in a suitable solvent and the osmotic pressure (pi) of solutions of various concentrations (g//cm^(3))C is measured at 20^(@)C . The slope of a plot of pi against C is found to be 4.65 xx 10^(-3) . The molecular weight of insulin is:

DINESH PUBLICATION-PRINCIPLES RELATED TO PRACTICAL CHEMISTRY-RQ
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