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Q. Show the Liquation in purification of metals?
Crude tin, bismuth and lead are purified by liquation. In this process, the impure metal is placed at the top of a sloping hearth maintained at a temperature slightly above the melting point of the metal. The metal melts and flows down the inclined hearth into a well leaving at the back the solid impurities.
To increase the pressure so that boiling point of water increases and heat provided goes only for cooking food not for boiling water
What is electromeyric effect
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
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