1
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
An organic compound $[\mathrm{X}]$ reacts with $\mathrm{H}_2 / \mathrm{Pd}-\mathrm{BaSO}_4$ to give compound $[\mathrm{Y}]$ which reduces Tollen's reagent and undergoes Cannizzaro's reaction. On rigorous oxidation of $[\mathrm{Y}]$ in presence of $\mathrm{KMnO}_4 / \mathrm{H}^{+}$Phthalic acid is the product obtained. What is $[\mathrm{X}]$ ?
A
COMEDK 2025 Morning Shift Chemistry - Carboxylic Acids and Its Derivatives Question 2 English Option 1
B
COMEDK 2025 Morning Shift Chemistry - Carboxylic Acids and Its Derivatives Question 2 English Option 2
C
COMEDK 2025 Morning Shift Chemistry - Carboxylic Acids and Its Derivatives Question 2 English Option 3
D
COMEDK 2025 Morning Shift Chemistry - Carboxylic Acids and Its Derivatives Question 2 English Option 4
2
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0

Arrange the following free radicals in the increasing order of their stability:

A B C D
COMEDK 2025 Morning Shift Chemistry - General Organic Chemistry Question 1 English 1 COMEDK 2025 Morning Shift Chemistry - General Organic Chemistry Question 1 English 2 COMEDK 2025 Morning Shift Chemistry - General Organic Chemistry Question 1 English 3 COMEDK 2025 Morning Shift Chemistry - General Organic Chemistry Question 1 English 4

A
$\mathrm{A}<\mathrm{B}<\mathrm{D}<\mathrm{C}$
B
$\mathrm{C}<\mathrm{D}<\mathrm{B}<\mathrm{A}$
C
$\mathrm{C}<\mathrm{B}<\mathrm{D}<\mathrm{A}$
D
$\mathrm{A}<\mathrm{B}<\mathrm{C}<\mathrm{D}$
3
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
If X is a haloalkane with a single Chlorine atom per molecule and the percentage of Cl is 55 , what would be the number of Cl atoms present in 0.1 g of the haloalkane? Atomic mass of $\mathrm{Cl}=35.5 \mathrm{~g} / \mathrm{mol}$
A
$6.022 \times 10^{22}$
B
$1.2044 \times 10^{21}$
C
$9.328 \times 10^{20}$
D
$9.329 \times 10^{23}$
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
For a reaction $\mathrm{X}_2(\mathrm{l})+\mathrm{Y}_2(\mathrm{~g}) \leftrightharpoons 2 \mathrm{XY}(\mathrm{g})$, the $\Delta \mathrm{H}^0$ and $\Delta \mathrm{S}^0$ are $+29.3 \mathrm{~kJ} / \mathrm{mol}$ and $104.1 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$ respectively at 298 K . Find the free energy change in $\mathrm{kJ} / \mathrm{mol}$.
A
0.6
B
2.04
C
5.2
D
1.72
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12