The gold numbers of gelatin, haemoglobin and | vedclass

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Question

(B) The protective power of a colloid is inversely proportional to its gold number.
Smaller the gold number, greater is the protective power.
Given

Vedclass · Accepted Answer

Gelatin $>$ haemoglobin $>$ sodium acetate

Vedclass · Answer

(B) The protective power of a colloid is inversely proportional to its gold number. Smaller the gold number, greater is the protective power. Given gold numbers: Gelatin: $5 imes 10^{-3}$ Haemoglobin: $5 imes 10^{-2}$ Sodium acetate: $7 imes 10^{-1}$ Comparing the values: $5 imes 10^{-3} < 5 imes 10^{-2} < 7 imes 10^{-1}$. Therefore, the order of protective power is: Gelatin $>$ haemoglobin $>$ sodium acetate.

The gold numbers of gelatin, haemoglobin and sodium acetate are $5 \times 10^{-3}$, $5 \times 10^{-2}$ and $7 \times 10^{-1}$, respectively. The protective actions will be in the order

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