The mineral rutile is an oxide of titanium containing 39.35% oxygen and is isomorphous with cassiterite `(SnO_(2))`. The atomic weight of titanium is

Options

A. 68.1
B. 58.1
C. 48.1
D. 38.1

Answer

C

Explanation

`[{:("Rutile" = TiO_(2)),("casiterite" = SnO_(2)):}]` Both are isomorphous
`Mw "of" TiO_(2) = x + 32`
`(x + 32) g "of" TiO_(2) implies (32)/((32 + x)) xx 100`
`:. (32 xx 100)/((32 + x)) = 39.95`
`:. X = 48.10`