1.

How mant reaction can show slag formation process from the given reaction ? (i) `SiO_(2) + CaO rarr CaSiO_(3)` (ii) `FeO + SiO_(2) rarr FeSiO_(3)` (iii) `CaO + P_(2)O_(5) rarr Ca_(3)(PO_(4))_(2)` (iv) `Cr_(2)O_(3) + 2Al rarr Al_(2)O_(3) + 2Cr` (v) `MgCO_(3) + SiO_(2) rarr MgSiO_(3) + CO_(2)`.A. (i) `SiO_(2) `- Acidic flux (ii) `MgO-` Basic fluxB. (i) `SiO_(2) `- Basic flux (ii) MgO - Acidic fluxC. (i) `SiO_(2) `- Basic flux (ii) MgO-Basic fluxD. (i) `SiO_(2)`-Acidic flux (ii) MgO -Acidic flux

Answer» Correct Answer - A
`(i) underset("Basic impurity")(FeO) + underset("Acidic flux")(SiO_(2)) to underset("Slag")(FeSiO_(3))`
`(ii) underset("Acidic impurity")(SiO_(2)) + underset("Basic flux")(MgO) to underset("Slag")(MgSiO_(3))`


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