IAT (IISER) 2022 | IAT (IISER) Year Wise Previous Years Questions

IAT (IISER) 2022

MCQ (Single Correct Answer)

-1

The products of the reaction between aqueous solutions of $K_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ and $\frac{1}{2} \mathrm{H}_2 \mathrm{O}_2$ are

$\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ and KOH

$\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ and $\mathrm{H}_2 \mathrm{O}$

$\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right], \mathrm{H}_2 \mathrm{O}$ and $\mathrm{H}_2 \mathrm{O}$

$\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_5(\mathrm{OH})\right]$ and HCN

IAT (IISER) 2022

MCQ (Single Correct Answer)

-1

For the colourless complex $\left[M\left(H_2 O\right)_6\right]^{n+}$, where $M$ is a $3 d$ transition metal, the CORRECT ground state $d$-electron configuration of $M$ is

$\left(t_{2 g}\right)^3\left(e_g\right)^0$

$\left(t_{2 g}\right)^6\left(e_g\right)^4$

$\left(t_{2 g}\right)^6\left(e_g\right)^2$

$\left(t_{2 g}\right)^4\left(e_g\right)^2$

IAT (IISER) 2022

MCQ (Single Correct Answer)

-1

Choose the correct statement about the structure of $\mathrm{C}_{60}$ fullerene

6-membered rings are fused with 5-membered rings ONLY.

6-membered rings are fused with 6-membered rings ONLY.

5-membered rings are fused with 6-membered rings ONLY.

5-membered rings are fused with both 5-membered and 6-membered rings.

IAT (IISER) 2022

MCQ (Single Correct Answer)

-1

$$ \text { The first to fifth ionization energies (IE) of two p-block elements } X \text { and } Y \text { are given below. } $$

$$ \begin{array}{|c|c|c|c|c|c|} \hline & \mathrm{IE}_1(\mathrm{eV}) & \mathrm{IE}_2(\mathrm{eV}) & \mathrm{IE}_3(\mathrm{eV}) & \mathrm{IE}_4(\mathrm{eV}) & \mathrm{IE}_5(\mathrm{eV}) \\ \hline \mathbf{X} & 6.0 & 18.8 & 28.4 & 120.0 & 153.7 \\ \hline \mathbf{Y} & 8.2 & 16.3 & 33.5 & 45.1 & 166.7 \\ \hline \end{array} $$

$$ \text { The number of valence electrons in } X \text { and } Y \text { respectively are } $$

1,4

3,4

3,5

4,5

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