Physical Chemistry
Some Basic Concepts of ChemistryStructure of AtomRedox ReactionsGaseous StateChemical EquilibriumIonic EquilibriumSolutionsThermodynamicsElectrochemistryChemical KineticsNuclear ChemistrySolid StateSurface ChemistryInorganic Chemistry
Periodic Table and PeriodicityChemical Bonding and Molecular StructureProcesses of Isolation of Elementss-Block ElementsHydrogenp-Block Elementsd and f Block ElementsCoordination CompoundsEnvironmental ChemistryOrganic Chemistry
Some Basic Concepts of Organic ChemistryHydrocarbonsHaloalkanes and HaloarenesAlcohol, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsOrganic Compounds Containing NitrogenPolymersBiomoleculesChemistry in Everyday LifeStructure of Atom
Practice QuestionsMCQ (Single Correct Answer)
1
A bulb is emitted electromagnetic radiation of $$660 \mathrm{~nm}$$ wavelength. The total energy of radiation is $$3 \times 10^{-18} \mathrm{~J}$$. The number of emitted photon will be
$$\left(h=6.6 \times 10^{-34}\right) \mathrm{J} \times \mathrm{s}, c=3 \times 10^8 \mathrm{~m} / \mathrm{s}$$
AIIMS 2019
2
Assertion : The chemical properties of different isotope are same.
Reason : Isotopes having same number of neutron.
AIIMS 2019
3
The work function of a metal is $$4.2 \mathrm{~eV}$$. If radiation of 2000 $$\mathop A\limits^o$$ fall on the metal then the kinetic energy of the fastest photoelectron is
AIIMS 2018