Due to the presence of an unpaired electron, free radicals are:
- (A)Chemically reactive✓ Correct
- (B)Chemically inactive
- (C)Anions
- (D)Cations
Answer: (A)
Solution
A free radical carries an unpaired electron, and an unpaired electron is an unsatisfied, unstable arrangement the species is eager to resolve. To pair that electron it readily attacks other molecules, which is why radicals are so chemically reactive and able to carry chain reactions forward. The unpaired electron makes them reactive, not charged, so they are neutral species rather than anions or cations.
JEE Main · 2005 · 08 May 2005 · Offline · Single correct option