दिया हैं : \(E^o_{Cr^{3+}/Cr} =-0.74\, V,\,\) \(E^o_{MnO_4^-/Mn^{2+}} =1.51 \,V\) \(E^o_{Cr_2O_7^{2-}/Cr^3+} =1.33\,V:\) \(E^o_{Cl/Cl^-} =1.36\,V\) दिये गए आँकड़ो के आधार पर प्रबल उपचायक होगा

A \(Cl\)
B \(Cr^{3+}\)
C \(Mn^{2+}\)
D \(MnO_4^-\)

Verified Solution

Answer & Solution

Correct Answer

(D) \(MnO_4^-\)

Step-by-step Solution

Detailed explanation

Higher the value of standard reduction potential stronger will be the oxidising agent, hence \(M n O_{4}^-\) is the strongest oxidising agent.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

सूची \(I\) को \(II\) से सुमेलित करें:\(1\) - ब्रोमोप्रोपेन सूची \(I\) के अभिकर्मक से अभिक्रिया करके सूची \(II\) का उत्पाद देता है

सूची \(I\) -अभिकर्मक	सूची \(II\) - उत्पाद
\(A\) \(KOH (\text { alc) }\)	\(I\) नाइट्राइल
\(B\) \(KCN \text { (alc) }\)	\(II\) Eएस्टर
\(C\) \(AgNO _2\)	\(III\) एल्कीन
\(D\) \(H _3 CCOOAg\)	\(IV\) नाइट्रोऐल्केन

JEE Mains 2023 Medium

यदि \(H _{2} O _{2}\) के \(100\) मोल \(1 \;bar\) तथा \(300\; K\) पर वियोजित हो तो \(1 \;bar\) दाब के विरुद्ध \(1\) मोल ऑक्सीजन के विस्तारित होने पर किया हुआ कार्य \((kJ\) में\()\) होगा। \(2{H_2}{O_2}(l) \rightleftharpoons {H_2}O(l) + {O_2}(g)\) \((R = 8.3\, JK^{-1}\, mol^{-1})\)

JEE Mains 2016 Hard

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