A naturally occurring substance has the constitution shown below. How many may have this constitution ?
$2$
$8$
$16$
$64$
Which of the following molecules has axis of symmetry and a coaxial plane of symmetry ?
Which among the following compound show optical activity
Which of the following is the Fischer projection of $L-$ threonine (also known as $(2S, 3R) \, 2-$ amino $-3-$ hydroxybutanoic acid) ?
Which of the following compounds is not chiral
Correct configuration of the following molecule is