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JEE Mains · Chemistry · STD 12 - 4. d and f- block elements
The set of correct statements is: \((i)\) Manganese exhibits \(+7\) oxidation state in its oxide. \((ii)\) Ruthenium and Osmium exhibit \(+8\) oxidation in their oxides. \((iii)\) \(Sc\) shows \(+4\) oxidation state which is oxidizing in nature. \((iv)\) \(Cr\) shows oxidising nature in \(+6\) oxidation state.
- A \((ii)\) and \((iii)\)
- B \((i), (ii)\) and \((iv)\)
- C \((i)\) and \((iii)\)
- D \((ii), (iii)\) and \((iv)\)
Answer & Solution
Correct Answer
(B) \((i), (ii)\) and \((iv)\)
Step-by-step Solution
Detailed explanation
\((i), (ii)\) and \((iv)\) correct. Manganese exhibits \(+7\) oxidation state in its oxide. \(\left( Mn _2 O _7\right)\) \(Ru\) and \(Os\) from \(RuO _4\) and \(OsO _4\) oxide in \(+8\) oxidation state \(Cr\) in \(+6\) oxidation act is oxidizing. \(Sc\) does not show \(+4\)…
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