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JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure

The internuclear distances in \(O -O\) bonds for \(O_2^+ ; O_2 , O_2^-\) and \(O_2^{2-}\) respectively are

  1. A \(1.30\mathop {\,A}\limits^o ,1.49\,\mathop A\limits^o ,1.12\,\mathop A\limits^o ,1.21\,\mathop A\limits^o \)
  2. B \(1.49\mathop {\,A}\limits^o ,1.21\,\mathop A\limits^o ,1.12\,\mathop A\limits^o ,1.30\,\mathop A\limits^o \)
  3. C \(1.21\mathop {\,A}\limits^o ,1.12\,\mathop A\limits^o ,1.49\,\mathop A\limits^o ,1.30\,\mathop A\limits^o \)
  4. D \(1.12\mathop {\,A}\limits^o ,1.21\,\mathop A\limits^o ,1.30\,\mathop A\limits^o ,1.49\,\mathop A\limits^o \)
Verified Solution

Answer & Solution

Correct Answer

(D) \(1.12\mathop {\,A}\limits^o ,1.21\,\mathop A\limits^o ,1.30\,\mathop A\limits^o ,1.49\,\mathop A\limits^o \)

Step-by-step Solution

Detailed explanation

The bond length follows the order \(O_2^+ < O_2 < O_2^- < O_2^{2-}\) According to this the possible values are \(1.12\mathop {\,A}\limits^o ,1.21\,\mathop A\limits^o ,1.30\,\mathop A\limits^o ,1.49\,\mathop A\limits^o \)