Researchers often get confused between the usage of “who” and “whom.” Both are pronouns but have slightly different meanings. “Who” is generally used for the subject, while “whom” is generally the object in the sentence. There is one simple way to avoid such confusion. If the question is considered a statement, we have to check whether the subject can be replaced by pronouns like “he,” “she,” etc., or “him,” “her,” etc. If we find pronouns like “he,” “she,” etc., appropriate in the statement, the question should have a “who” in it. On the other hand, if pronouns like “him,” “her” etc., seem to be correct, then we need to choose “whom” over “who.” Check the example below to clear your doubts.
Incorrect: The first author is generally whom does the maximum work in a research.
Correct: The first author is generally who does the maximum work in a research.