1
JEE Main 2025 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Aman has been asked to synthesise the molecule JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 17 English He thought of preparing the molecule using an aldol condensation reaction. He found a few cyclic alkenes in his laboratory. He thought of performing ozonolysis reaction on alkene to produce a dicarbonyl compound followed by aldol reaction to prepare " $x$ ". Predict the suitable alkene that can lead to the formation of " $x$ ".

A
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 17 English Option 1
B
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 17 English Option 2
C
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 17 English Option 3
D
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 17 English Option 4
2
JEE Main 2025 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

For the given cell

$$\mathrm{Fe}^{2+}(\mathrm{aq})+\mathrm{Ag}_{(\mathrm{aq})}^{+} \rightarrow \mathrm{Fe}^{3+}(\mathrm{aq})+\mathrm{Ag}_{(\mathrm{s})}$$

The standard cell potential of the above reaction is Given:

$$\begin{array}{lr} \mathrm{Ag}^{+}+\mathrm{e}^{-} \rightarrow \mathrm{Ag} & \mathrm{E}^\theta=\mathrm{xV} \\ \mathrm{Fe}^{2+}+2 \mathrm{e}^{-} \rightarrow \mathrm{Fe} & \mathrm{E}^\theta=\mathrm{yV} \\ \mathrm{Fe}^{3+}+3 \mathrm{e}^{-} \rightarrow \mathrm{Fe} & \mathrm{E}^\theta=\mathrm{zV} \end{array}$$

A
$x+2 y-3 z$
B
$$x+2 y$$
C
$y-2 x$
D
$x+y-z$
3
JEE Main 2025 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Following are the four molecules "P", "Q", "R" and "S".

Which one among the four molecules will react with $\mathrm{H}-\mathrm{Br}_{(\mathrm{aq})}$ at the fastest rate?

JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Haloalkanes and Haloarenes Question 12 English

A
Q
B
S
C
P
D
R
4
JEE Main 2025 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following ions is the strongest oxidizing agent? (Atomic Number of $\mathrm{Ce}=58, \mathrm{Eu}=63, \mathrm{~Tb}=65, \mathrm{Lu}=71$)

A
$\mathrm{Lu}^{3+}$
B
$\mathrm{Eu}^{2+}$
C
$\mathrm{Tb}^{4+}$
D
$\mathrm{Ce}^{3+}$
JEE Main Papers
2023
2021
EXAM MAP