For the following radicals, the correct order of their stability is

• A

  $[\mathrm{A}] < [\mathrm{B}] < [\mathrm{C}] < [\mathrm{D}]$
• B

  $[\mathrm{D}] < [\mathrm{C}] < [\mathrm{B}]>[\mathrm{A}]$
• Correct answer
  C

  $[\mathrm{B}] < [\mathrm{C}] < [\mathrm{D}] < [\mathrm{A}]$
• D

  $[\mathrm{B}] < [\mathrm{C}] < [\mathrm{A}] < [\mathrm{D}]$

Solution

More the $\propto \mathrm{H}$, more will be its stability of free radicals. So, the correct order is $[\mathrm{B}] < [\mathrm{C}] < [\mathrm{D}] < [\mathrm{A}]$.

Hence, the correct answer is option: 'C'.