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1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Reaction by which benzaldehyde cannot be prepared is

A
Benzoic acid $$\xrightarrow{\mathrm{Zn} \cdot \mathrm{Hg} \text { and conc. } \mathrm{HCl}}$$
B
Toluene $$\xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{CrO}_2 \mathrm{Cl}_2 \text { in } \mathrm{CS}_2}$$
C
Benzoyl chloride $$+\mathrm{H}_2 \xrightarrow[\Delta]{\text { Pd- } \mathrm{BaSO}_4}$$
D
Benzene $$+\mathrm{CO}+\mathrm{HCl} \xrightarrow{\text { Anhyd. } \mathrm{AlCl}_3}$$
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Ethanoic acid undergoes Hell-Volhard Zelinsky reaction but methanoic acid does not, because of

A
presence of $$\alpha$$-$$\mathrm{H}$$ atom in ethanoic acid
B
absence of $$\alpha$$-$$\mathrm{H}$$ atom in ethanoic acid
C
higher acidic strength of ethanoic acid than methanoic acid
D
presence of $$\alpha$$-$$\mathrm{H}$$ atom in methanoic acid
3
KCET 2021
MCQ (Single Correct Answer)
+1
-0

In set of reactions, identify $$D$$

$$\mathrm{CH}_3 \mathrm{COOH} \xrightarrow{\mathrm{SOCl}_2} A \xrightarrow[\text { Anhy. } \mathrm{AlCl}_3]{\text { Benzene }} B \xrightarrow{\mathrm{HCN}} C \xrightarrow{\mathrm{H}_2 \mathrm{O}} D$$

A
KCET 2021 Chemistry - Carboxylic Acids and Its Derivatives Question 6 English Option 1
B
KCET 2021 Chemistry - Carboxylic Acids and Its Derivatives Question 6 English Option 2
C
KCET 2021 Chemistry - Carboxylic Acids and Its Derivatives Question 6 English Option 3
D
KCET 2021 Chemistry - Carboxylic Acids and Its Derivatives Question 6 English Option 4
4
KCET 2021
MCQ (Single Correct Answer)
+1
-0

The reagent which can do the conversion $$\mathrm{CH}_3 \mathrm{COOH} \longrightarrow \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{OH}$$ is

A
$$\mathrm{LiAlH}_4$$/ ether
B
$$\mathrm{H}_2, \mathrm{Pt}$$
C
$$\mathrm{NaBH}_4$$
D
$$\mathrm{Na}$$ and $$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$$
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KCET 2025 (2) KCET 2022 (2) KCET 2021 (3) KCET 2019 (2) KCET 2017 (1)
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Physics
Mechanics
Units & Measurement and DimensionsVector AlgebraMotion in a Straight LineMotion in a PlaneLaws of MotionCircular MotionWork, Energy and PowerCenter of Mass and CollisionRotational MotionGravitationSimple Harmonic MotionFluid MechanicsElasticityWavesHeat and Thermodynamics
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Electromagnetism
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Modern Physics
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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 StructureMetallurgyHydrogen and It's Compoundss-Block Elementsp-Block Elementsd and f Block ElementsCoordination CompoundsSalt AnalysisEnvironmental Chemistry
Organic Chemistry
IUPAC NomenclaturesGeneral Organic ChemistryIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohol, Phenols and EthersAldehyde and KetoneCarboxylic Acids and Its DerivativesCompounds Containing NitrogenPolymersBiomoleculesChemistry in Everyday Life
Mathematics
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Coordinate Geometry
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