ExamSIDE (Powered by ExamGOAL)
Questions
NEXT
1
COMEDK 2025 Evening Shift
MCQ (Single Correct Answer)
+1
-0
The correct order of reactivity of halogens with alkanes is :
A
$\mathrm{F}_2>\mathrm{Cl}_2>\mathrm{Br}_2>\mathrm{I}_2$
B
$\mathrm{F}_2>\mathrm{Br}_2>\mathrm{Cl}_2>\mathrm{I}_2$
C
$\mathrm{Cl}_2>\mathrm{F}_2>\mathrm{Br}_2>\mathrm{I}_2$
D
$\mathrm{I_2>B r_2>C l_2>F_2}$
2
COMEDK 2025 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
Choose the incorrect statement from the following.
A
$\mathrm{CH}_2 \mathrm{Cl}_2$ is widely used as a propellant in aerosols.
B
DDT was widely used because of its effectiveness against mosquitos that spread malaria
C
Freon 1, 2 is manufactured from trichloromethane by Swartz reaction
D
Antiseptic property of Iodoform is due to the liberation of $I_2$ when it comes in contact with skin
3
COMEDK 2025 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
Identify the incorrect statement.
A
When (一)-2-bromooctane is reacted with aqueous KOH , the substitution follows $\mathrm{S}_{\mathrm{N}} 2$ mechanism and product formed is (一) -Octan-2-ol.
B
Benzylic halides show higher reactivity towards $S_N 1$ reaction.
C
The reaction of $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2-\mathrm{CHCl}-\mathrm{C}_6 \mathrm{H}_5$ with alc. KOH on heating yields two products.
D
Optically active (-)-2-Methylbutan-1-ol on reaction with HCl yields a product $(+)$-1-Chloro-2-methylbutane.
4
COMEDK 2025 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
Toluene when reacted with $\mathrm{Cl}_2$ gas at 385 K forms a product X which undergoes further reaction with Sodium ethoxide to yield product Y . The structure of Y is ___________ .
A
COMEDK 2025 Afternoon Shift Chemistry - Haloalkanes and Haloarenes Question 3 English Option 1
B
COMEDK 2025 Afternoon Shift Chemistry - Haloalkanes and Haloarenes Question 3 English Option 2
C
COMEDK 2025 Afternoon Shift Chemistry - Haloalkanes and Haloarenes Question 3 English Option 3
D
COMEDK 2025 Afternoon Shift Chemistry - Haloalkanes and Haloarenes Question 3 English Option 4
NEXT
COMEDK Subjects
Physics
Mechanics
Units & Measurements Vector Algebra Motion Laws of Motion Circular Motion Work, Energy and Power Center of Mass and Collision Rotational Motion Elasticity Fluid Mechanics Heat and Thermodynamics Gravitation Simple Harmonic Motion Waves
Optics
Ray Optics Wave Optics
Electromagnetism
Electrostatics Current Electricity Capacitor Moving Charges and Magnetism Magnetism and Matter Electromagnetic Induction Alternating Current Electromagnetic Waves
Modern Physics
Atoms and Nuclei Dual Nature of Radiation Semiconductor Devices and Logic Gates Communication Systems
Chemistry
Physical Chemistry
Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry
Inorganic Chemistry
Periodic Table and Periodicity Chemical Bonding and Molecular Structure Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Metallurgy Coordination Compounds Environmental Chemistry
Organic Chemistry
IUPAC Nomenclatures General Organic Chemistry Isomerism Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry
Mathematics
Algebra
Sets and Relations Logarithms Complex Numbers Quadratic Equations Sequences and Series Permutations and Combinations Probability Binomial Theorem Vector Algebra Three Dimensional Geometry Matrices and Determinants Statistics Mathematical Reasoning Linear Programming
Trigonometry
Trigonometric Ratios & Identities Trigonometric Equations Inverse Trigonometric Functions Properties of Triangles
Coordinate Geometry
Straight Lines and Pair of Straight Lines Circle Parabola Ellipse Hyperbola
Calculus
Functions Limits, Continuity and Differentiability Differentiation Application of Derivatives Indefinite Integration Definite Integration Area Under The Curves Differential Equations
EXAM MAP
Joint Entrance Examination
JEE MainJEE AdvancedMHT CETBITSATCOMEDKWB JEEKCETVITEEEAP EAPCETTS EAMCETIAT (IISER)
Medical
NEETAIIMSMHT CET (Biology)
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