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Gold number of haemoglobin is 0.03. Henc...

Gold number of haemoglobin is `0.03`. Hence, how much `100 mL` of gold sol will require haemoglobin so that gold is not coagulated by `1 mL` of `10%` NaCl solution.

A

0.03 mg

B

30 mg

C

0.30 mg

D

3mg

Text Solution

Verified by Experts

The correct Answer is:
C
Gold number=0.03
Gold sol volume =100ml
Let the amount of hemoglobin required is x mg
Since the gold number is the amount in miligrams required to prevent the coagulation of 10 ml of gold sol by 1 ml of 10% NaCl
`therefore(x)/(100)xx10=` gold number
`thereforex=0.30mg`
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