$CH_3 - CH_3, CH_3 - CH_2 $$- CH_3, (CH_3)_2CH - CH_3,$
$ CH_3 - CH_2 - CH(CH_3)_2.$
આ મૂલકોનો સ્થાયિતાનો વધતો ક્રમ કયો છે?
$\underset{A}{\mathop{PhF}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\underset{B}{\mathop{PhCl}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\underset{C}{\mathop{PhBr}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\underset{D}{\mathop{PhI}}\,$