1
IAT (IISER) 2020
MCQ (Single Correct Answer)
+4
-1

$$ \text { Select the most appropriate compound I and the reagents for the synthesis of compound II } $$

IAT (IISER) 2020 Chemistry - Alcohol, Phenols and Ethers Question 1 English
A
IAT (IISER) 2020 Chemistry - Alcohol, Phenols and Ethers Question 1 English Option 1
B
IAT (IISER) 2020 Chemistry - Alcohol, Phenols and Ethers Question 1 English Option 2
C
IAT (IISER) 2020 Chemistry - Alcohol, Phenols and Ethers Question 1 English Option 3
D
IAT (IISER) 2020 Chemistry - Alcohol, Phenols and Ethers Question 1 English Option 4
2
IAT (IISER) 2020
MCQ (Single Correct Answer)
+4
-1

$$ \text { Identify the final major product III in the following reaction sequence: } $$

IAT (IISER) 2020 Chemistry - Haloalkanes and Haloarenes Question 1 English
A
IAT (IISER) 2020 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 1
B
IAT (IISER) 2020 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 2
C
IAT (IISER) 2020 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 3
D
IAT (IISER) 2020 Chemistry - Haloalkanes and Haloarenes Question 1 English Option 4
3
IAT (IISER) 2020
MCQ (Single Correct Answer)
+4
-1
If S is the set of all points $(x, y)$ satisfying the equation $\sin x=\cos y$, then which of the following statements is correct?
A
$S$ contains all points of a parabola.
B
$S$ contains all points of a circle.
C
$S$ contains all points of a hyperbola.
D
$S$ contains all points of a straight line.
4
IAT (IISER) 2020
MCQ (Single Correct Answer)
+4
-1
If $A=\left[\begin{array}{lll}1 & a & 0 \\ 0 & 1 & b \\ 0 & 0 & 1\end{array}\right]$, then the determinant of $I-A+A^2-A^3+A^4-\cdots+A^{2020}$ is
A
2020
B
$a^{2020}-b a^{2019}+\cdots-b^{2019} a+b^{2020}$
C
$2020^3$
D
1
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