It just depends on where the c is. In the middle or a word, yes it does make that kh sound.
"P, T and C; as in English, except that in the middle or end of words you should add a very slight 'kh' sound before them, almost no more than a little extra breath. (That 'kh' is the back of the throat sound as in loch or German Bach. Practise it.) E.g. càrn 'caarn', baca 'ba(kh)-kuh'."