Answer:
The correct answer is option D.
Explanation:
In the given compound \(2Al_2(CO_3)_3\)
In one molecule of \(Al_2(CO3_)_3\) there are 9 oxygen atoms.
Then total number of oxygen atoms in two molecules of aluminum carbonate will be:
\(9\times 2=18 atoms\)
In one \(Al_2(CO_3)_3\) there are 9 atoms, then 2 molecule of aluminum carbonate there will be 18 atoms.
