Chemistry In water, Hydrogen is present ________by mass. Options:A. 22%B. 11.11%C. 31.13%D. 15.15%View AnswerB. 11.11% Continue Reading Previous: Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?Next: Which of the following is more acidic in nature?