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IAT (IISER) 2020

IAT (IISER) / 15 questions

2026Fri, Sep 18, 2020 3:30 AM15 PYQs
1Alcohol Phenols And Ethers
\(\text { Select the most appropriate compound I and the reagents for the synthesis of compound II }\)
MCQ+4 / -12020
2Atomic Structure
The total number of nodes for a given principal quantum number $n$, and azimuthal quantum number $\ell$, are
MCQ+4 / -12020
3Biomolecules
Common disaccharide sucrose is held together by a glycosidic linkage between
MCQ+4 / -12020
4Carboxylic Acids And Its Derivatives
Identify the major product that forms easily and faster in the following reaction. (Tetrahydrofuran= solvent)
MCQ+4 / -12020
5Chemical Bonding And Molecular Structure
\(\text { What is the most appropriate Lewis structure of } \mathrm{NO}_2 \mathrm{~F} \text { ? }\)
MCQ+4 / -12020
6Chemical Kinetics
A first-order reaction is found to have a half-life of one second (sec). What will be the time required for $99.9 \%$ completion of the reaction?
MCQ+4 / -12020
7Coordination Compounds
\(\text { The number of unpaired electron(s) in the square planar complex }[\text{Ni}(\text{CN})_4]^{2-} \text { is/are }\) :
MCQ+4 / -12020
8Coordination Compounds
Which one of the following aqueous solutions gives the most intense colour?
MCQ+4 / -12020
9General Organic Chemistry
Select the correct option based on the increasing order of boiling point of the molecules given below.
MCQ+4 / -12020
10Haloalkanes And Haloarenes
\(\text { Identify the final major product III in the following reaction sequence: }\)
MCQ+4 / -12020
11Ionic Equilibrum
The molar conductivity of 0.00241 M acetic acid is $32.87 \mathrm{Scm}^2 \mathrm{~mol}^{-1}$. If the limiting molar conductivity at 298 K is $390.5 \mathrm{Scm}^2 \mathrm{~mol}^{-1}$, what is the dissociation constant ( $\mathrm{mol} \mathr...
MCQ+4 / -12020
12P Block Elements
Which among the following is NOT correct?
MCQ+4 / -12020
13Periodic Table And Periodicity
Which among the following is NOT correct regarding the first ionization potential $\left(\mathrm{IP}_1\right)$ of period $I I I$ elements $M g, A l, S i, P$ and $S$ ?
MCQ+4 / -12020
14Solid State
\(\text { How many atoms are present in a hexagonal close-packed unit cell? }\)
MCQ+4 / -12020
15Thermodynamics
What is the correct relation between the heat capacity at constant volume $\left(C_v\right)$ and heat capacity at constant pressure $\left(C_p\right)$ for an ideal gas? ( $R=$ Universal gas constant)
MCQ+4 / -12020

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