The most stable canonical structure of the given molecule is:

Select the correct option for the following compounds.

Consider the following structures. Which statement is $NOT$ correct?

Which type of isomerism is exhibited by the following compounds $I$ and $II$?
$(i)$ $CH_3CH=CHCH_3$
$(ii)$ $CH_3-CH(OH)-CH_2CH_3$

$A$ pair of stereoisomers might be classified in various ways. Which of the following statements are true with respect to pairs of stereoisomers?
$a$. They might be configurational isomers
$b$. They might be diastereomers
$c$. They might be constitutional isomers
$d$. They might be tautomers
$e$. They might be conformational isomers
$f$. They might be enantiomers
$g$. They might be positional isomers

Which of the following Fischer projection formulas is the same as $D$-Glyceraldehyde?