Hydrogen is the most abundant element in the
AOceans of the Earth
BEarth's crust by mass
CAtmosphere of Earth
DUniverse at large
Answer & Solution
Correct answer: D. Universe at large
1. The chapter section on occurrence mentions universe abundance.
2. Outer atmospheres of the sun and stars are mostly hydrogen.
3. On Earth, oxygen is the most abundant in the crust.
4. So hydrogen rules the universe at large.
_Source: Selina Concise Chemistry Class 8, Ch on Hydrogen (Mistral OCR'd PDF), section on occurrence_
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