1
JEE Main 2025 (Online) 2nd April Morning Shift
MCQ (Single Correct Answer)
+4
-1
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Consider the following molecules:

JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Chemical Bonding & Molecular Structure Question 10 English

The correct order of rate of hydrolysis is :

A
$\mathrm{p}>\mathrm{q}>\mathrm{r}>\mathrm{s}$
B
$r>q>p>s$
C
$\mathrm{p}>\mathrm{r}>\mathrm{q}>\mathrm{s}$
D
$q>p>r>s$
2
JEE Main 2025 (Online) 2nd April Morning Shift
Numerical
+4
-1
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For the reaction A $\to$ products.

JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 12 English

The concentration of A at 10 minutes is _________ $\times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$ (nearest integer). The reaction was started with $2.5 \mathrm{~mol} \mathrm{~L}^{-1}$ of A .

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3
JEE Main 2025 (Online) 2nd April Morning Shift
Numerical
+4
-1
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0.1 mol of the following given antiviral compound $(\mathrm{P})$ will weigh ________ $\times 10^{-1} \mathrm{~g}$ (nearest integer).

JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Practical Organic Chemistry Question 8 English

(Given : molar mass in $\mathrm{g} \mathrm{mol}^{-1} \mathrm{H}: 1, \mathrm{C}: 12, \mathrm{~N}: 14, \mathrm{O}: 16, \mathrm{~F}: 19, \mathrm{I}: 127$ )

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4
JEE Main 2025 (Online) 2nd April Morning Shift
Numerical
+4
-1
Change Language

Consider the following electrochemical cell at standard condition.

$$\mathrm{Au}(\mathrm{~s})\left|\mathrm{QH}_2, \mathrm{Q}\right| \mathrm{NH}_4 \mathrm{X}(0.01 \mathrm{M})| | \mathrm{Ag}^{+}(1 \mathrm{M}) \mid \mathrm{Ag}(\mathrm{~s}) \mathrm{E}_{\text {cell }}=+0.4 \mathrm{~V}$$

The couple $\mathrm{QH}_2 / \mathrm{Q}$ represents quinhydrone electrode, the half cell reaction is given below:

JEE Main 2025 (Online) 2nd April Morning Shift Chemistry - Electrochemistry Question 8 English

$$\left[\text { Given : } \mathrm{E}_{\mathrm{Ag}^{+} / \mathrm{Ag}}^0=+0.8 \mathrm{~V} \text { and } \frac{2.303 \mathrm{RT}}{\mathrm{~F}}=0.06 \mathrm{~V}\right]$$

The $\mathrm{pK}_{\mathrm{b}}$ value of the ammonium halide salt $\left(\mathrm{NH}_4 \mathrm{X}\right)$ used here is __________ . (nearest integer)

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