MHT CET · Chemistry · General Organic Chemistry
Which free radical from following is least stable?
- A \(\dot{\mathrm{C}} \mathrm{H}_3\)
- B \(\mathrm{CH}_3-\stackrel{\cdot}{\mathrm{C}} \mathrm{H}_2\)
- C \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}\)
- D \(\left(\mathrm{CH}_3\right)_2{ }_2 \dot{\mathrm{C}} \mathrm{H}\)
Answer & Solution
Correct Answer
(A) \(\dot{\mathrm{C}} \mathrm{H}_3\)
Step-by-step Solution
Detailed explanation
Stability of CFR \(\propto\) no. of \(a-H\)
\(\stackrel{\bullet}{\mathrm{C}} \mathrm{H}_3 \Rightarrow \mathrm{Oa}-\mathrm{H}\)
\(\mathrm{CH}_3-\stackrel{\bullet}{\mathrm{C}} \mathrm{H}_2 \Rightarrow 3 a-H\)
\(\left(\mathrm{CH}_3\right)_3 \stackrel{\bullet}{\mathrm{C}} \Rightarrow 9 a-H\)
\(\left(\mathrm{CH}_3\right)_2 \stackrel{\bullet}{\mathrm{C}} \Rightarrow 6 a-H\)
\(\stackrel{\bullet}{\mathrm{C}} \mathrm{H}_3 \Rightarrow \mathrm{Oa}-\mathrm{H}\)
\(\mathrm{CH}_3-\stackrel{\bullet}{\mathrm{C}} \mathrm{H}_2 \Rightarrow 3 a-H\)
\(\left(\mathrm{CH}_3\right)_3 \stackrel{\bullet}{\mathrm{C}} \Rightarrow 9 a-H\)
\(\left(\mathrm{CH}_3\right)_2 \stackrel{\bullet}{\mathrm{C}} \Rightarrow 6 a-H\)
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