At elevated temperatures

When ZnO is heated to elevated temperatures which is incorrect statement ?

At elevated temperature, few of covalent bonds of Si or Ge are broken a vacancy in the bond is created. Effective charge of vacancy or hole is

At elevated temperature , PCl_(5) dissociates as PCI_(5(a)) hArr PCl_(3(g)) + Cl_(2(g)) . " At " 300^(@) C,m K_(p) = 11.8 and [PCl_(3)] = [Cl_(3)] = 0.01 "mol" L^(-1) at equilibrium [PCl_(5)] = x xx 10^(-4) "mol" L^(-1) . What is the value of x ?

At elevated temperature , PCl_(5) dissociates as PCI_(5(a)) hArr PCl_(3(g)) + Cl_(2(g)) . " At " 300^(@) C, K_(p) = 11.8 and [PCl_(3)] = [Cl_(2)] = 0.01 "mol" L^(-1) at equilibrium [PCl_(5)] = x xx 10^(-4) "mol" L^(-1) . What is the value of x ?

Which represents an intermediate formed in the reaction of toluene and chlorine at elevated temperature in sunlight?