Answer
(a) 1
(b) 3
(c) 6
(d) 6
Work Step by Step
(a) In CH$_4$, we can count only 1 atom of carbon.
(b) In C$_3$H$_8$, we can count 3 atoms of carbon.
(c) In C$_6$H$_6$, we can count 6 atoms of carbon.
(d) 6In C$_6$H$_{12}$O$_6$, we can count 6 atoms of carbon.
