Question:
Identify the correct stock notation for manganese dioxide.
Identify the correct stock notation for manganese dioxide.
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Find the oxidation state of Mn when each oxygen is minus two.
Updated On: Nov 12, 2026
- \(\text{Mn(I)O}_{2}\)
- \(\text{Mn(II)O}_{2}\)
- \(\text{Mn(III)O}_{2}\)
- \(\text{Mn(IV)O}_{2}\)
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
In Stock notation the oxidation number of the metal is written in Roman numerals in brackets after its name or symbol.
Step 2: Find the Oxidation State
In \(\text{MnO}_{2}\), oxygen is \(-2\) each, so \(x+2(-2)=0\) and \(x=+4\).
Step 3: Compare the options
Mn in \(+4\) state is written \(\text{Mn(IV)O}_{2}\), option (D).
Final Answer:
Manganese dioxide is written as Mn(IV)O2. \[ \boxed{\text{(D) }\text{Mn(IV)O}_{2}} \]
In Stock notation the oxidation number of the metal is written in Roman numerals in brackets after its name or symbol.
Step 2: Find the Oxidation State
In \(\text{MnO}_{2}\), oxygen is \(-2\) each, so \(x+2(-2)=0\) and \(x=+4\).
Step 3: Compare the options
Mn in \(+4\) state is written \(\text{Mn(IV)O}_{2}\), option (D).
Final Answer:
Manganese dioxide is written as Mn(IV)O2. \[ \boxed{\text{(D) }\text{Mn(IV)O}_{2}} \]
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