The most stable carbonium ion among the following is:

List the reactive intermediates produced by the fission of a covalent bond and describe their main characteristics.

Rank the transition states that occur during the following reaction steps in order of increasing stability (least $\to$ most stable):
$1.$ $CH_3-O^+H_2 \to CH_3^+ + H_2O$
$2.$ $(CH_3)_3C-O^+H_2 \to (CH_3)_3C^+ + H_2O$
$3.$ $(CH_3)_2CH-O^+H_2 \to (CH_3)_2CH^+ + H_2O$

Which of the following is an incorrect stability order?

Which of the following carbocations is the most stable?

What is the decreasing order of stability (most stable $\to$ least stable) of the following carbocations?