What will be the product formation when Metallic niobium and silica, S – McqOptions

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1.	What will be the product formation when Metallic niobium and silica, SiO₂ are heated under vacuum at 1100^oC?
A.	tNb<sub>5</sub>Si<sub>3</sub>
B.	tNb<sub>3</sub>Si<sub>5</sub>
C.	tNb<sub>2</sub>Si<sub>3</sub>
D.	tNo product
Answer» E.

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