Halogens - Theory & Question Answers - Chemistry IX Halogens - Theory & Question Answers - Chemistry IX Theory & Question Answers Chapter No. 15 "Halogens" Practical Centre for class IX, 9th, Ninth Class Practical Centre Chemistry ninth class Theory & Question Answers from Halogens Halogens Chapter List | Theory & Question Answers | Fill In The Blanks | MCQs | Online MCQs