Hydrogen - Online Mcqs Test - Chemistry 9th (Part I) Chemistry IX Class MCQs – Hydrogen – 9th Hydrogen – Online Mcqs Test (20 Mcqs) 1/20jQuizMe *Select all those things which result when sodium metal is placed in a beaker of water:H2 and NaOH Water becomes acidic No action Sodium disappears after sometime Online MCQs Test - Part II Hydrogen Chapter List | Theory & Question Answers | Fill In The Blanks | MCQs | Online MCQs