Which of the following compounds will produce the most stable carbonium ion when heterolytic cleavage of C-O bond take place ?

Which of the following compounds will produce the most stable carboniu

1.	Which of the following compounds will produce the most stable carbonium ion when heterolytic cleavage of C-O bond take place ?
Answer» `CH_(3)CH-UNDERSET(underset(CH_(3))(\|))(CH_(2))-OH` `CH_(3)-underset(underset(CH_(3))(\|))overset(overset(CH_(3))(\|))(C)-OH` `CH_(3)-underset(underset(OH)(\|))(CH)-CH_(2)-CH_(3)` `CH_(3)-CH_(2)-CH_(2)-CH_(2)-OH` SOLUTION :`ALPHA` stability of carbocatcon is `alpha +I` effect.