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JEE Main 20253 AprilMorning Shift
Exam
JEE Main
Year
2025
Date
3 April
Shift
Morning Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2025 · 3 April · Morning Shift · Chemistry · d and f Block Elements

Consider the following reactions aligned & CrO_2 Cl_ 2( Vapour )...

Consider the following reactionsCrO2Cl2( Vapour )+NaOH→B+NaCl+H2O&B+H+→C+H2O\begin{aligned}& \mathrm{CrO}_2 \mathrm{Cl}_{2(\text{ Vapour })}+\mathrm{NaOH} \rightarrow \mathrm{ B}+\mathrm{NaCl}+\mathrm{H}_2 \mathrm{O} \& \mathrm{ B}+\mathrm{H}^{+} \rightarrow \mathrm{C}+\mathrm{H}_2 \mathrm{O}\end{aligned}The number of terminal ' O ' present in the compound ' C ' is ______.

Correct answer

0

Step-by-step solution

Cr2O72−+NaCl+H2SO4→CrO2Cl2CrO2Cl2( Vapour )+NaOH→Na2CrO4+NaCl+H2O\begin{aligned} & \mathrm{Cr}_2 \mathrm{O}_7^{2-}+\mathrm{NaCl}+\mathrm{H}_2 \mathrm{SO}_4 \rightarrow \mathrm{CrO}_2 \mathrm{Cl}_2 \\ & \mathrm{CrO}_2 \mathrm{Cl}_2(\text{ Vapour })+\mathrm{NaOH} \rightarrow \mathrm{Na}_2 \mathrm{CrO}_4+\mathrm{NaCl}+\mathrm{H}_2 \mathrm{O}\end{aligned}\mathrm{Na}_2 \mathrm{Cr}_2 \mathrm{O}_7 \rightarrow 2 \mathrm{Na}^{\oplus}+\mathrm{Cr}_2 \mathrm{O}_7^{2-} No$ of terminal "O" = 6
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