Chemistry Questions and Answers for NTS, PPSC, PMS, CSS, FPSC, PTS, OTS Tests and Interviews This post has Chemistry Questions and Answers for NTS, PPSC, PMS, CSS, FPSC, PTS, OTS Tests and Interviews. This is the 3rd post of Chemistry Quiz 1st series. MCQs are taken from Caravan Comprehensive Book for people who are looking for job test preparation online. Students …