Correct spelling, explanation: which is a wh-word, a group of basic English pronouns that we can use to pose questions or introduce relative clauses. This is why we should spell it beginning with wh. In that case, the form wich is incorrect, which can be caused by a simple misspelling or may be influenced by the phonetics, as there is a silent h. Whatever the reason, we should note that the only correct spelling is which.

Definition of which:
pronoun: Which can be used in questions where there is a limited amount of possible answers.
Which language do you prefer to learn – Spanish or German?
Which can reffer to a particular thing we want to put focus on.
The team which he played for got a new sponsor.
Which can introduce an additional information.
He promised it would be done by the end of the year, which I seriously doubt.

Idioms with which which:
– which is which: see the difference between two very similar things or people
The samples got mixed up and I couldn’t tell which is which.
– which way to turn: whom ask for help or what to do
Which way to turn when there is no more hope left?

Incorrect spelling, explanation: wich is a misspelled version of a pronoun which. As one of the fundamental English pronouns and part of wh-words group, which have to be spelled with wh at the beginning. Although the h is silent in phonetics, it should not be left out in writing. The mistake can also be a simple an ordinary misspelling. No matter the reason, the only correct form is which and not wich.

Incorrect spelling

Incorrect spelling