If you are asked to write a IUPAC name for a compound, pay careful attention to the syntax of this nomenclature system. For example, commas and dashes must be used in precisely the correct manner, and extra spaces must be avoided. Spelling must also be absolutely correct. Computers (and some instructors) are unforgiving when it comes to judging the names you submit.
Part B: The formula for a substituted carbocyclic compound is shown below.
Part C: The formula for another carbocyclic compound is shown below.
Part D: The formula for a difunctional compound is shown below.
Part E: (CH3)2CHCH2CH(OH)CH2CH3
Part F: CH2=C(C2H5)CH2C(CH3)2OH