MCQ
Most abundant element on earth is
- ✓$O$
- B$S$
- C$Se$
- D$Te$
The amount of hydrogen on earth's crust is $0.15\, \%$.
The amount of nitrogen on the earth's crust is $0.002\, \%$.
The amount of silicon on earth's crust is $30\, \%$.
Hence, oxygen is the most abundant element on earth's crust.
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Its bond order is