Physical Chemistry
Some Basic Concepts of ChemistryAtomic StructureStates of MatterThermodynamicsChemical EquilibriumIonic EquilibriumLiquid SolutionRedox ReactionsSurface ChemistrySolid StateElectrochemistryChemical KineticsNuclear ChemistryInorganic Chemistry
Periodic Table and PeriodicityChemical Bonding and Molecular StructureHydrogen and It's Compoundss-Block Elementsp-Block Elementsd and f Block ElementsMetallurgyCoordination CompoundsEnvironmental ChemistryOrganic Chemistry
IUPAC NomenclaturesGeneral Organic ChemistryIsomerismHydrocarbonsHaloalkanes and HaloarenesAlcohol, Phenols and EthersAldehyde and KetoneCarboxylic Acids and Its DerivativesCompounds Containing NitrogenPolymersBiomoleculesChemistry in Everyday LifePractical Organic ChemistryPractical Organic Chemistry
Practice QuestionsMCQ (Single Correct Answer)
1
In the estimation of element $$\mathrm{X}$$ in an organic compound, $$0.8 \mathrm{~g}$$ of the compound containing $$\mathrm{X}$$ was heated with fuming $$\mathrm{HNO}_3$$ and the cooled product was treated with barium chloride. The mass of barium sulphate precipitated was $$1.2 \mathrm{~g}$$. What is the percentage of element $$\mathrm{X}$$ and what is the formula of the violet-coloured compound formed when Lassaigne's extract of the organic compound is treated with sodium nitroprusside?
COMEDK 2024 Evening Shift
2
Presence of halogen in organic compounds can be detected using
COMEDK 2020