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Introduction

The precipita...

Question

The precipitate $(P)$ contains:

P b^{2 +}

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H g_{2}^{2 +}

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A g^{+}

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H g^{2 +}

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Solution

The correct option is A $P b^{2 +}$
Reaction of process:

$P b^{2 +} + 2 H C l \to P b C l_{2} + H_{2}$

$P b C l_{2} Hot - -- \to Water (soluble)$
$C r^{3 +} H_{2} S - ------ \to ammoniacal C r (O H)_{3} ↓$
$C r (O H)_{3} N a O H - --- \to H_{2} O_{2} N a_{2} C r O_{4} (yellow)$

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Similar questions

B r_{2} + O H^{-} (H o t) \to (P) + (Q); (P) + (Q) + H^{+} \to B r_{2};

(P)

A g N O_{3}

(P)

(Q)

P - H

B C l_{3} + N H_{4} C l 140^{\circ} C - --- \to P

H_{3} P O_{5}, H_{2} P_{2} O_{6}

N H_{4} H S

N H_{4} H S (s) ⇌ N H_{3} (g) + H_{2} S (g) .

N H_{3}

H_{2} S

K_{P} = 0.11) .

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