Answer
Structural formulas for the given molecules are as follows.
f) Among these molecules, methoxymethane is represented by the given ECP model.
Work Step by Step
a) From the nomenclature, it is seen that there is 'oxy' i.e. this is an ether. Draw 'O' atom with two single bond on two sides. 'meth' means 1 C. Put one C on left side bond of O and one C on the right side bond of O atom. Remaining valency of C is filled with H.
b) 'prop' means 3 C. Draw 3 C in straight chain and numbering them from 1 to 3 from any of the terminal sides. '2-methoxy' means $-OCH_{3}$ group present at C2 position. Put $-OCH_{3}$ on C2 position and remaining valency of C is filled with H.
c) word root is 'but'. 'but' means 4C. Draw 4 C in straight chain and numbering them from 1 to 4 from any of the terminal sides. '1,2-diethoxy' means two no. of $-OCH_{2}CH_{3}$ group present at C1 and C2 position respectively. Put them on the corresponding positions. Remaining valency of C is filled with H.
d) Draw benzene. 'ethoxy' means one $'-OCH_{2}CH_{3}'$ group is present at benzene ring. Put that substituent on any C of benzene ring.
e) 'but' means 4 C. 'cyclo' means cyclic and 'ane' means alkane. Draw cyclobutane. Now, 'methoxy' means $-OCH_{3}$ group is present as a substituent in the cyclobutane ring. Put the substituent at any C of the ring.
