The number of oxygen atoms present in 20...

The number of oxygen atoms present in 20.4 g of `Al_(2)O_(3)` are equal to the number of :

A

Oxygen atoms in 3.6 g of water

B

Oxygen atoms in 5.4 g of water

C

Hydrogen atoms in 5.4 g of water

D

Hydrogen atoms in 10.8 g of water

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