The phrasal verb "take on" has several meanings.
When the complement of the phrasal verb is the pronoun "it", can there ever be this construction: "He took on it"?
Or, it has to be "He took it on", regardless of context?
The object in my example is not a pronoun, it's the coordination 'it, and several other things like it', and has Loob says, it requires unusual emphasis on 'it' (and then 'like'). That's the only way you can produce the sequence 'on it' here: the sequence 'on it' is not a constituent of my sentence. You can get the same emphasis in, for example, 'He took on both it and the others.'