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Resistance offered by the molecules of a liquid to flow is termed as viscosity.

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Actual Yield

Amount of a specified pure product actually obtained from a given reaction. Compare with Theoretical Yield.

Melting Point

The temperature at which liquid and solid coexist in equilibrium, also the freezing point.

Explosive limits

The range of concentrations over which a flammable vapour mixed with proper ratios of air will ignite or explode if a source of ignitions is provided.

Molecule

The smallest particle of an element or compound capable of a stable, independent existence.

Polyene

A compound that contains more than one double bond per molecule.

Alkaline Battery

A dry cell in which the electrolyte contains KOH.

Canal Ray

Stream of positively charged particles (cations) that moves toward the negative electrode in cathode ray tubes, observed to pass through canals in the negative electrode.

Crystal Lattice

A pattern of arrangement of particles in a crystal.

Second Law of Thermodynamics

The universe tends toward a state of greater diorder in spontaneous processes.

Lewis Dot Formula (Electron Dot Formula)

Representation of the core of a molecule, ion or formula unit by showing atomic symbols and only outer shell electrons.