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| List-$I$ | List-$II$ |
| $A$. Iron | $I$. Synthesis of auxin |
| $B$. Zinc | $II$. Component of nitrate reductase |
| $C$. Boron | $III$. Activator of catalase |
| $D$. Molybdenum | $IV$. Cell elongation and differentiation |
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