MCQ
The volume (in $mL$ ) of $0.1\,M\,AgNO _3$ required for complete precipitation of chloride ions present in $20\,mL$ of $0.01\,M$ solution of $\left[ Cr \left( H _2 O \right)_5 Cl \right] Cl _2$ as silver chloride is $..........$.
  • $4$
  • B
    $3$
  • C
    $2$
  • D
    $1$

Answer

Correct option: A.
$4$
a
$\left[ Cr \left( H _2 O \right)_5 Cl \right] Cl _2+2 AgNO _3 \rightarrow$

$\begin{array}{ll}0.01\,M , 20\, mL & 0.1\, M \\ \text { For } 0.2 \text { milimole } & AgNO _3 \text { required }\end{array}$

$0.4=0.1 \times V ( ml )$

$V =4\,mL$

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