🛠️ JEE🧪 Chemistry

Which of the following salt solutions would coagulate the colloid soloution formed when \(FeCl _3\) is added to \(NaOH\)…

Q1

Which of the following salt solutions would coagulate the colloid soloution formed when \(FeCl _3\) is added to \(NaOH\) solution, at the fastest rate?

a

\(10 mL\) of \(0.2 moldm ^{-3} AlCl _3\)

b

\(10 mL\) of \(0.1 moldm ^{-3} Na _2 SO _4\)

c

\(10 mL\) of \(0.1 moldm ^{-3} Ca _3\left( PO _4\right)_2\)

d

\(10 mL\) of 0.15 moldm \(^{-3} CaCl _2\)

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