MCQOPTIONS
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MCQOPTIONS
| 1. |
Elements A and B form eutectic type binary phase diagrams and the eutectic composition is 60 wt% B. If just below eutectic temperature, the eutectic phase contains equal amounts (by wt) of two solid phases, then the compositions of the two solid phases are |
| A. | 20 wt% B and 90 wt% B |
| B. | 30 wt% B and 90 wt% B |
| C. | 20 wt% B and 80 wt% B |
| D. | 30 wt% B and 80 wt% B |
| Answer» C. 20 wt% B and 80 wt% B | |