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Q.

Which of the following colloidal solutions contain negatively charged colloidal particles?

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a

Fe(OH)3 sol

b

As2S3 sol

c

Blood

d

Gold sol

answer is C, B, D.

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Detailed Solution

The colloidal sols can be divided into positively and negatively charged sols depending on the type of charge.

Fe(OH)3 -Positive colloid

As2S3-Negative colloid

Blood-Negative colloid

Gold sol-Negative colloid

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