MHT CET · Chemistry · Redox Reactions
Oxidation sate of \(\mathrm{Cr}\) in potassium dichromate is
- A 7
- B 6
- C 1
- D 5
Answer & Solution
Correct Answer
(B) 6
Step-by-step Solution
Detailed explanation
Potassium dichromate \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\)
\(
\begin{aligned}
& 1 \times 2+\mathrm{x} \times 2-2 \times 7=0^{+1} \mathrm{x}^{-2} \\
& 2 \mathrm{x}=12 \\
& \mathrm{X}=+6
\end{aligned}
\)
\(
\begin{aligned}
& 1 \times 2+\mathrm{x} \times 2-2 \times 7=0^{+1} \mathrm{x}^{-2} \\
& 2 \mathrm{x}=12 \\
& \mathrm{X}=+6
\end{aligned}
\)
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