A) \[{{A}_{3}}{{O}_{5}}\]
B) \[{{A}_{5}}{{O}_{3}}\]
C) \[{{A}_{12}}{{O}_{9}}\]
D) \[{{A}_{9}}{{O}_{12}}\]
Correct Answer: C
Solution :
[c] : Molar ratio \[A:O\frac{50}{12}:\frac{50}{16}=4.16:3.12\] \[=1.33:1=4:3\] \[E.F.={{A}_{4}}{{O}_{3}}\] \[E.F.W.=\left( 12\times 4 \right)+\left( 16\times 3 \right)=96\] \[n=\frac{M.F.W}{E.F.W}=\frac{288}{96}=3\] Molecular formula \[={{({{A}_{4}}{{O}_{3}})}_{3}}=A{{ & }_{12}}{{O}_{9}}\]You need to login to perform this action.
You will be redirected in
3 sec