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Gold number of haemoglobin is 0.03. Henc...

Gold number of haemoglobin is 0.03. Hence 100 ml of gold sol will require haemoglobin so that gold is not coagulated by 10 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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