Yes, they are both correct, and interchangeable in real-life contexts.
The concentration values obtained by these different methodologies are not interchangeable.
These two words are almost interchangeable.
Capable of being interchanged: interchangeable items of clothing; interchangeable automotive parts.
interchangeable parts
'Have to' and 'must' often used interchangeable.
sometimes the words 'of' and 'from' are interchangeable in English, for example after the verb 'to die'.
His greatest innovation was the use of interchangeable parts.
If things are interchangeable, you can exchange them because they can be used in the same way.
It's also very common to say "to get in touch with someone". It means the same as "to get in contact with someone" and the two are interchangeable.
The camera has two interchangeable lenses.
The writer is right that these sentences are not interchangeable but they are wrong about the second sentence being wrong.
"Worried" and "concerned" are interchangeable.
interchangeable /ˌɪntəˈtʃeɪndʒəbl; US / adj. interchangeable (with sth) able to be used in place of each other without making any difference to the way sth works Are these two words interchangeable? ▶ zamienny wymienny
Englisch Wort "wymienny"(interchangeable) tritt in Sätzen auf: