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Physical Chemistry
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Liquid Solution
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Surface Chemistry
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Periodic Table and Periodicity
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Chemical Bonding and Molecular Structure
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Hydrogen and It's Compounds
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s-Block Elements
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Metallurgy
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Coordination Compounds
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Environmental Chemistry
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IUPAC Nomenclatures
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General Organic Chemistry
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Isomerism
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Hydrocarbons
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Haloalkanes and Haloarenes
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Alcohol, Phenols and Ethers
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Aldehyde and Ketone
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Carboxylic Acids and Its Derivatives
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Compounds Containing Nitrogen
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Polymers
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Biomolecules
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Chemistry in Everyday Life
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Practical Organic Chemistry
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1
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

Increasing order of bond order of oxygen and its ions is

A
$${O_2} < O_2^ + < O_2^{2 - } < O_2^ - $$
B
$$O_2^ - < O_2^{2 - } < O_2^ + < {O_2}$$
C
$$O_2^ + < {O_2} < O_2^ - < O_2^{2 - }$$
D
$$O_2^{2 - } < O_2^ - < {O_2} < O_2^ + $$
2
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

The P-O bond order in PO$$_4^{3-}$$ is

A
1
B
1.5
C
1.45
D
1.25
3
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

Which of the following compound does not exists?

A
NCl$$_3$$
B
NCl$$_5$$
C
SbCl$$_3$$
D
NI$$_3$$
4
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Find the correct order of C$$-$$O bond length among CO, CO$$_3^{2-}$$, CO$$_2$$.

A
CO$$_2$$ < CO$$_3^{2-}$$ < CO
B
CO < CO$$_3^{2-}$$ < CO$$_2$$
C
CO$$_3^{2-}$$ < CO$$_2$$ < CO
D
CO < CO$$_2$$ < CO$$_3^{2-}$$
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Physics
Mechanics
Units & MeasurementsVector AlgebraMotionLaws of MotionCircular MotionWork, Energy and PowerCenter of Mass and CollisionRotational MotionElasticityFluid MechanicsHeat and ThermodynamicsGravitationSimple Harmonic MotionWaves
Optics
Ray OpticsWave Optics
Electromagnetism
ElectrostaticsCurrent ElectricityCapacitorMoving Charges and MagnetismMagnetism and MatterElectromagnetic InductionAlternating CurrentElectromagnetic Waves
Modern Physics
Atoms and NucleiDual Nature of RadiationSemiconductor Devices and Logic GatesCommunication Systems
Chemistry
Physical Chemistry
Some Basic Concepts of ChemistryAtomic StructureStates of MatterThermodynamicsChemical EquilibriumIonic EquilibriumLiquid SolutionRedox ReactionsSurface ChemistrySolid StateElectrochemistryChemical KineticsNuclear Chemistry
Inorganic Chemistry
Periodic Table and PeriodicityChemical Bonding and Molecular StructureHydrogen and It's Compoundss-Block Elementsp-Block Elementsd and f Block ElementsMetallurgyCoordination CompoundsEnvironmental Chemistry
Organic Chemistry
IUPAC NomenclaturesGeneral Organic ChemistryIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohol, Phenols and EthersAldehyde and KetoneCarboxylic Acids and Its DerivativesCompounds Containing NitrogenPolymersBiomoleculesChemistry in Everyday LifePractical Organic Chemistry
Mathematics
Algebra
Sets and RelationsLogarithmsComplex NumbersQuadratic EquationsSequences and SeriesPermutations and CombinationsProbabilityBinomial TheoremVector AlgebraThree Dimensional GeometryMatrices and DeterminantsStatisticsMathematical ReasoningLinear Programming
Trigonometry
Trigonometric Ratios & IdentitiesTrigonometric EquationsInverse Trigonometric FunctionsProperties of Triangles
Coordinate Geometry
Straight Lines and Pair of Straight LinesCircleParabolaEllipseHyperbola
Calculus
FunctionsLimits, Continuity and DifferentiabilityDifferentiationApplication of DerivativesIndefinite IntegrationDefinite IntegrationArea Under The CurvesDifferential Equations