TG EAPCET 2025 (Online) 3rd May Evening Shift | Metallurgy Question 3 | Chemistry

Statement I : The choice of reducing agent for the reduction of an oxide ore can be predicted by using Ellingham diagram, a plot of $\Delta G^{\ominus}$ vs $T$.

Statement II : According to Ellingham diagram, metal oxide with higher $\Delta G^{\ominus}$ is more stable than the oxide with lower $\Delta G^{\ominus}$.

The correct answer is

Both Statement I and II are correct.

Statement I is correct, but Statement II is not correct.

Statement I is not correct, but Statement II is correct.

Both Statement I and II are not correct.

TG EAPCET 2025 (Online) 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

In the extraction of iron using blast furnace to remove the impurity $(X)$, chemical $(Y)$ is added to the ore. $X$ and $Y$ are respectively

$\mathrm{SiO}_2, \mathrm{MgCO}_3$

$\mathrm{FeO}, \mathrm{SiO}_2$

$\mathrm{SiO}_2, \mathrm{CaCO}_3$

$\mathrm{SiO}_2, \mathrm{FeCO}_3$

TG EAPCET 2025 (Online) 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

Metal $X$ obtained from sphalarite ore can be purified by which of the following method?

Distillation

Poling

Zone refining

Vapour phase refining

TG EAPCET 2025 (Online) 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

Identify the reaction, which is not related to extraction of copper

$2 \mathrm{Cu}_2 \mathrm{~S}+3 \mathrm{O}_2 \longrightarrow 2 \mathrm{Cu}_2 \mathrm{O}+2 \mathrm{SO}_2$

$2 \mathrm{FeS}+3 \mathrm{O}_2 \longrightarrow 2 \mathrm{FeO}+2 \mathrm{SO}_2$

$\mathrm{FeO}+\mathrm{SiO}_2 \longrightarrow \mathrm{FeSiO}_3$

$\mathrm{SiO}_2+\mathrm{CaO} \longrightarrow \mathrm{CaSiO}_3$

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