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General Principles and processes of Isolation of Elements
medium
Three most occuning elements into the earth crust are
A
$O,\, Si,\, Al$
B
$Si,\,O,\, Fe$
C
$Fe,\,Ca,\,Al$
D
$Si,\,O,\,N$
Solution
Three most occurring elements into the earth crust are $O , Si$ and $Al$.
Standard 12
Chemistry
