Which of the following has highest percentage of hydrogen (a) CH4 (b) C2H4 (c) C6H6 (d) C2H2 Which of the following has highest percentage of hydrogen (a) CH4 (b) C2H4 (c) C6H6 (d) C2H2 December 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,