Consider the following reactions. PbCl 2 + K 2 CrO 4 A + 2 KCl (Hot solution) A + NaOH B + Na 2 CrO 4 PbSO 4 + 4 CH 3 COONH 4( NH 4 ) 2 SO 4 + X In the above reactions, A, B, and X are respectively. [2026]

Question

Consider the following reactions.

${PbCl}_{2} + K_{2} {CrO}_{4} \to A + 2 KCl$

$(Hot solution)$

$A + NaOH ⇌ B + {Na}_{2} {CrO}_{4}$

${PbSO}_{4} + 4 {CH}_{3} {COONH}_{4} \to {({NH}_{4})}_{2} {SO}_{4} + X$

In the above reactions, A, B, and X are respectively. [2026]

Smart Achievers · Accepted Answer

(4)

$\begin{matrix} {PbCl}_{2} & + & K_{2} {CrO}_{4} & \to & {PbCrO}_{4} & + & 2 KCl \\ (Hot solution) & (A) \end{matrix}$

$\begin{matrix} {PbCrO}_{4} & + & 4NaOH (excess) & \to & {Na}_{2} [Pb {(OH)}_{4}] & + & {Na}_{2} {CrO}_{4} \\ (B) \end{matrix}$

$\begin{matrix} {PbSO}_{4} & + & 4 {CH}_{3} {COONH}_{4} & \to & {({NH}_{4})}_{2} [Pb {({CH}_{3} COO)}_{4}] & + & {({NH}_{4})}_{2} {SO}_{4} \\ (X) \end{matrix}$

Solution

Q.
Consider the following reactions.

${PbCl}_{2} + K_{2} {CrO}_{4} \to A + 2 KCl$

$(Hot solution)$

$A + NaOH ⇌ B + {Na}_{2} {CrO}_{4}$

${PbSO}_{4} + 4 {CH}_{3} {COONH}_{4} \to {({NH}_{4})}_{2} {SO}_{4} + X$

In the above reactions, A, B, and X are respectively. [2026]

1 ${Na}_{2} [Pb {(OH)}_{2}], {PbCrO}_{4} and {({NH}_{4})}_{2} [Pb {({CH}_{3} COO)}_{4}]$

2 ${PbCrO}_{4}, {Na}_{2} [Pb {(OH)}_{4}] and [Pb {({NH}_{3})}_{4}] {SO}_{4}$

3 ${Na}_{2} [Pb {(OH)}_{2}], {PbCrO}_{4} and [Pb {({NH}_{3})}_{4}] {SO}_{4}$

4 ${PbCrO}_{4}, {Na}_{2} [Pb {(OH)}_{4}] and {({NH}_{4})}_{2} [Pb {({CH}_{3} COO)}_{4}]$

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Solution

Q. Consider the following reactions. PbCl2+K2CrO4→A+2KCl (Hot solution) A+NaOH⇌B+Na2CrO4 PbSO4+4CH3COONH4→(NH4)2SO4+X In the above reactions, A, B, and X are respectively. [2026]

1 Na2[Pb(OH)2], PbCrO4 and (NH4)2[Pb(CH3COO)4]

2 PbCrO4, Na2[Pb(OH)4] and [Pb(NH3)4]SO4

3 Na2[Pb(OH)2], PbCrO4 and [Pb(NH3)4]SO4

4 PbCrO4, Na2[Pb(OH)4] and (NH4)2[Pb(CH3COO)4]