The reaction of bromine with an alkene is an example of which of the following?

What is the major product of the following reaction?

Which of the following compounds is obtained when cyclohexene is oxidized using $KMnO_4$ in dilute $H_2SO_4$?

The correct structure of the product $A$ formed in the reaction shown below is:
$Cyclohex-2-en-1-one \xrightarrow[{Pd/C, \text{ ethanol}}]{{H_2 \text{ (gas, 1 atm)}}} A$

What is the major product formed by the reaction of $HI$ with $CH_3-C(CH_3)_2-CH=CH_2$?

Given below are two statements $:$
Statement $I :$ Ozonolysis followed by treatment with $Zn, H_2O$ of $cis-2-butene$ gives ethanal.
Statement $II :$ The product obtained by ozonolysis followed by treatment with $Zn, H_2O$ of $3,6-dimethyloct-4-ene$ has no chiral carbon atom.
In the light of the above statements,choose the correct answer from the options given below.