By the technique of crystallization, pure solids are separated from impurities. For example, salt obtained from sea is separated from impurities; crystals of alum (Phitkari) are separated from impure samples
Crystallization is the slow precipitation of crystals from a solution of a substance. Crystallization can also refer to the solid-liquid separation and purification technique in which mass transfer occurs from...
A homogeneous mixture is a mixture having a uniform composition throughout the mixture. For example, mixtures of salt in water, sugar in water, copper sulphate in water, iodine in alcohol,...
A homogeneous mixture is a mixture having a uniform composition throughout the mixture. For example: salt in water, sugar in water, copper sulphate in water A heterogeneous mixture is a...
(a) Separation by using separating funnel
(b) Sublimation
(c) Filtration followed by evaporation or
Centrifugation followed by evaporation/distillation
(d) Separation by using separating funnel to separate kerosene oil followed by evaporation...
(a) heterogenous, centrifugation
(b) physical, chemically
(c) water, chloroform (hint– density of water is less than that of chloroform)
(d) fractional distillation
(e) scattering, Tyndall effect, colloidal
Kössel’s explanation of chemical bonding:
Noble gases separate the highly electronegative halogens and the highly electropositive alkali metals.
Halogens can form negatively charged ions by gaining an electron. Whereas alkali metals can form positively...
Yes. One can use antibody against the enzyme (that is, responsible for the metabolism of phenylalanine) to develop ELISA based diagnostic technique. The patient where the enzyme protein is absent...