" The species "CH_(3)CHCH_(3" is less stable than ")^(+)CHCH_(3)

The species CH_(3)overset(+)CHCH_(3) is less stable than :

The reaction CH_(2) = CHCH_(3) + HBr rarr CH_(3)CHBrCH_(3) is -

A IUPAC name for the group CH_(3)underset(CH_(2)CH_(3)" ")underset("| ")(CHCH_(2)) - is :

The IUPAC name of (CH_(3))_(2)CHCH_(3) is

Which of the following compounds exhibits geometrical isomerism? underset((i))(CH_(2)=CHCH_(3)) underset((ii))(CH_(3)CH=CHCH_(3)) underset((iii))(CH_(3)CH=C)=CHCH_(3) underset((iv))(CH_(3)CH=C=C=CHCH_(3))

The IUPAC name of (CH_(3))_(2) CHCH_(3) is