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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The charges on the colloidal

CdS

sol and

Ti{O_2}

sol are, respectively

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Correct option: D

negative and positive

Option D (negative and positive) is correct because sulfide sols like CdS are typically negatively charged, while oxide sols like TiO2 are typically positively charged.

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