In the reaction
`2Ca_(3)[PO_(4)]_(2)+6SiO_(2) overset(Delta)to6CaSiO_(3) +P_(4)O_(10)`
A. a weaker acid anhydride replaces a stronger one
B. a stronger acid anhydride replaces a weaker one
C. both acid anhydrides have equal strength
D. none of these
`2Ca_(3)[PO_(4)]_(2)+6SiO_(2) overset(Delta)to6CaSiO_(3) +P_(4)O_(10)`
A. a weaker acid anhydride replaces a stronger one
B. a stronger acid anhydride replaces a weaker one
C. both acid anhydrides have equal strength
D. none of these
Correct Answer – A
In this reaction a weaker acid anhydride replaces a stronger one because `P_(4)O_(10)` is volatile while `SiO_(2)` is not.