why do the identification and test methods listed in british pharmacopia monograph for drug substances differ to those listed in a monograph for the corresponding formulated preparation? please use the examples of naproxen drug substance and naproxen tablet monographs to explain your answer.

i believe it is a.) released into

explanation:

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.