Extraction of Metals - Result Question 57
####58. Each entry in Column $X$ is in some way related to the entries in Columns $Y$ and $Z$. Match the appropriate entries. (1988, 3M)
| Column $\boldsymbol{X}$ | Column $\boldsymbol{Y}$ | Column $\boldsymbol{Z}$ | |||
|---|---|---|---|---|---|
| A. | Invar | p. | $Co, Ni$ | m. | Cutlery |
| B. | Nichrome | q. | $Fe, Ni$ | n. | Heating element |
| C. | Stainless steel |
r. | $Fe, Cr, Ni$ | o. | Watch spring |
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Solution:
| Column $\boldsymbol{X}$ | Column $\boldsymbol{Y}$ | Column $\boldsymbol{Z}$ |
|---|---|---|
| Invar | $Fe, Ni$ | Watch spring |
| Nichrome | $Co, Ni$ | Heating element |
| Stainless steel | $Fe, Cr, Ni$ | Cutlery |
