MCQOPTIONS
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MCQOPTIONS
| 1. |
What will be the product formation when Metallic niobium and silica, SiO2 are heated under vacuum at 1100oC? |
| 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. | |