1
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following reactions is an example of roasting?

A

$\mathrm{ZnCO}_3 \longrightarrow \mathrm{ZnO}+\mathrm{CO}_2$

B

$2 \mathrm{PbS}+3 \mathrm{O}_2 \longrightarrow 2 \mathrm{PbO}+2 \mathrm{SO}_2$

C

$\mathrm{Fe}_2 \mathrm{O}_3+3 \mathrm{C} \longrightarrow 2 \mathrm{Fe}+3 \mathrm{CO}$

D

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

2
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Nature of two oxides of nitrogen $X$ and $Y$ formed in the reaction of sodium nitrite with hydrochloric acid is

A

Both $X$ and $Y$ are acidic in nature

B

$X$ is acidic and $Y$ is neutral in nature

C

Both $X$ and $Y$ are neutral in nature

D

$X$ is amphoteric and $Y$ is neutral in nature

3
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \text { Match the following } $$

$$ \begin{array}{cccc} \hline & \begin{array}{c} \text { List-I } \\ \text { (Transition metal, M) } \end{array} & & \begin{array}{c} \text { List-II } \\ \left(E_{M^{2+} / M}^{\ominus}\right) \end{array} \\ \hline \text { (A) } & \mathrm{Ni} & \text { (I) } & -1.18 \\ \hline \text { (B) } & \mathrm{Mn} & \text { (II) } & -0.91 \\ \hline \text { (C) } & \mathrm{Fe} & \text { (III) } & -0.25 \\ \hline \text { (D) } & \mathrm{Cr} & \text { (IV) } & -0.44 \\ \hline \end{array} $$

The correct answer is

A

A-III, B-I, C-IV, D-I

B

A-III, B-IV, C-I, D-II

C

A-III, B-I, C-IV, D-II

D

A-I, B-IV, C-II, D-III

4
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the complex ion with spin only magnetic moment of 4.90 BM .

A

$\left[\mathrm{CO}\left(\mathrm{NH}_3\right)_6\right]^{3+}$

B

$\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]^{3+}$

C

$\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}$

D

$\left[\mathrm{MnCl}_6\right]^{3-}$