Baeyer's reagent is ....

With anhydrous zinc chloride,ethylene glycol gives:

The reaction of $3$-phenylpropene with $HBr$ gives (as the major product):

Consider the following reaction sequence:
$CH_3-C(CH_3)_2-CH=CH_2 \xrightarrow[2. KOH, EtOH, \text{heat}]{1. HBr}$
The major end product formed is:

Taking into account the stability of various cycloalkanes and carbocations,as well as the rules governing mechanisms of carbocation rearrangements,what is the most likely product of this reaction?

On catalytic reduction $(H_2/Pt)$,how many alkenes will give $2-$methylbutane?