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Odd electron molecule is...

Odd electron molecule is

A

`NO`

B

propane

C

`NO_2`

D

Both 1 and 3

Text Solution

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The correct Answer is:
To determine which of the given molecules is an odd electron molecule, we need to count the total number of valence electrons for each molecule and check if the total is an odd number. ### Step-by-Step Solution: 1. **Identify the Molecules**: The question provides two molecules to analyze: Nitric Oxide (NO) and Propane (C3H8). 2. **Count Valence Electrons for NO**: - Nitrogen (N) has 5 valence electrons. - Oxygen (O) has 6 valence electrons. - Total for NO = 5 (from N) + 6 (from O) = 11 valence electrons. 3. **Determine if NO is an Odd Electron Molecule**: - Since 11 is an odd number, NO is classified as an odd electron molecule. 4. **Count Valence Electrons for C3H8 (Propane)**: - Each Carbon (C) has 4 valence electrons, and there are 3 Carbons. - Each Hydrogen (H) has 1 valence electron, and there are 8 Hydrogens. - Total for C3H8 = (3 × 4) + (8 × 1) = 12 + 8 = 20 valence electrons. 5. **Determine if C3H8 is an Odd Electron Molecule**: - Since 20 is an even number, C3H8 is not an odd electron molecule. 6. **Conclusion**: - The odd electron molecule among the options is NO, while C3H8 does not qualify as an odd electron molecule. ### Final Answer: The odd electron molecule is **NO**. ---
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