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IAT (IISER) 2024

IAT (IISER) / 15 questions

2026Sun, Jun 9, 2024 3:30 AM15 PYQs
1Atomic Structure
The minimum energy needed to remove an electron from a metal corresponds to a wavelength of 500 nm . What is the total kinetic energy of all the photoelectrons ejected per second when the entire radiation from a 100 Watt bulb with a wavelen...
MCQ+4 / -12024
2Chemical Bonding And Molecular Structure
Which one of the following statements is correct about $\mathrm{N}_2, \mathrm{CO}$, and $\mathrm{NO}^{+}$?
MCQ+4 / -12024
3Chemical Bonding And Molecular Structure
According to the VSEPR theory, what are the most stable shapes of $X_4 F_4$ and $\mathrm{SF}_4$, respectively?
MCQ+4 / -12024
4Chemical Kinetics
For a reaction $R \rightarrow P$ with a rate constant of $3 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$, which one of the following plots is correct? (Given [R] $]_0$ is the initial concentration of $R$ and $[R]$ is the ...
MCQ+4 / -12024
5Compounds Containing Nitrogen
\(\text { What are the products } \mathrm{N} \text { and } \mathrm{Q} \text { in the following reaction sequences? }\)
MCQ+4 / -12024
6Coordination Compounds
Which of the following complexes exhibit(s) magnetic moment close to 2 BM ?

$$
\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]\left(\mathrm{NO}_3\right)_2, \mathrm{~K}_2\left[\mathrm{MnCl}_4\right], \mathrm{K}_4\left[\mathrm...
MCQ+4 / -12024
7Coordination Compounds
The following complex ions absorb in the ultraviolet-visible region of light. Which one of these shows violet colour?
$$ \left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)\left(...
MCQ+4 / -12024
8Electrochemistry
Consider the following data for KCl solution at a particular temperature. What is the value of the limiting molar conductivity?


$$ \begin{array}{|c|c|} \hline \text { Concentration }\left(\mathrm{mol} \mathrm{~L}^{-1}\right) & \text { Mol...
MCQ+4 / -12024
9General Organic Chemistry
\(\text { What is the correct order of acidity for the following compounds? }\)
MCQ+4 / -12024
10Hydrocarbons
\(\text { What are } X \text { and } Z \text { in the following sequence of reactions? }\)
MCQ+4 / -12024
11Isomerism
\(\text { What are the correct structural descriptions for } M \text { and } N \text { ? }\)
MCQ+4 / -12024
12Isomerism
\(\text { What is the relationship between the structures depicted below? }\)
MCQ+4 / -12024
13Liquid Solution
Which one of these plots correctly describes the variation of osmotic pressure ( $\Pi$ ) of a fixed amount of a solute against the volume $(\mathrm{V})$ of the solution at a fixed temperature?
MCQ+4 / -12024
14Periodic Table And Periodicity
If an element with $Z=120$ is discovered, then which group of elements will it belong to?
MCQ+4 / -12024
15Thermodynamics
Consider an exothermic reaction: $2 \mathrm{~A}(\mathrm{~s}) \rightarrow \mathrm{B}(\mathrm{s})+\mathrm{C}(\mathrm{g})+\mathrm{D}(\mathrm{g})$. The correct statement about the reaction is
MCQ+4 / -12024

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