With oxalic acid,glycerol at $260\,^\circ C$ gives

Write the $IUPAC$ names of the products obtained by the addition reaction of $HBr$ to $hex-1-ene$:
$(i)$ in the absence of peroxide and
$(ii)$ in the presence of peroxide.

Some addition reactions of alkene are given below. Identify the one which fits on $ALL$ the given criteria.
Reaction must have-
$(A)$ Stereochemistry of addition - $SYN$ $ONLY$
$(B)$ Regiochemistry of addition - $ANTI-MARKOVNIKOV$ $OR$ $ANTI-MARKOVNIKOV$ $LIKE$

Provide the structural formula for $2$-methyl-$2$-butene.

Which one of the following alkenes when treated with $HCl$ yields majorly an anti-Markovnikov product?

Which intermediate is formed during the addition of $HCl$ to propene in the presence of peroxide?