Some Basic Concepts of Chemistry Part 1

Section: Chemistry
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Question : 77 of 100
 
Marks: +1, -0
The most abundant elements by mass in the body of a healthy human adult are :
Oxygen (61.4%) ; Carbon (22.9%), Hydrogen (10.0%) ; and Nitrogen (2.6%). The weight which a 75 kg person would gain if all 1H atoms are replaced by 2H atom is
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