Haemoglobin and gold sol are examples of:

Question:

Haemoglobin and gold sol are examples of:

  1. negatively charged sols

  2. positively charged sols]

  3. negatively and positively charged sols, respectively

  4. positively and negatively charged sols, respectively

Correct Option: , 4

Solution:

Haemoglobin $\longrightarrow$ positive sol

$\mathrm{Ag}-$ sol $\longrightarrow$ negative sol

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