Match the items given in Column I and Column II. Column I \( \mathr...

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Match the items given in Column I and Column II.
Column I
\( \mathrm{P} \)
(i) Protective colloid Column II
W
(ii) Liquid - liquid colloid
(a) \( \mathrm{FeCl}_{3}+\mathrm{NaOH} \)
(b) Lyophilic colloids
(iii) Positively charged colloid
(c) Emulsion
(iv) Negatively charged colloid
(d) \( \mathrm{FeCl}_{3}+ \) hot water
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