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JEE Mains · Chemistry · STD 11 - 7. Redox reactions

निम्नलिखित अभिक्रिया को देखें: \(\mathrm{Cr}_2 \mathrm{O}_7^{2-}+\mathrm{XH}^{+}+6 \mathrm{Fe}^{2+} \rightarrow \mathrm{YCr}^{3+}+6 \mathrm{Fe}^{3+}+\mathrm{ZH}_2 \mathrm{O}\) \(\mathrm{X}, \mathrm{Y}\) और \(\mathrm{Z}\) का योग__________है।

  1. A \(22\)
  2. B \(21\)
  3. C \(20\)
  4. D \(23\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(23\)

Step-by-step Solution

Detailed explanation

\(Cr _2 O _7^{2-}+14 H ^{+}+6 Fe ^{2+} \rightarrow 6 Fe ^{3+}+2 Cr ^{3+}+7 H _2 O\) \(x =14\) \(y =2\) \(z =7\) Hence \((x+y+z)=14+2+7=23\)
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