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A chemist determined the concentration of a bleach solution containing NaClO by volumetric analysis. A 25.0 cm3 sample of the bleach was first diluted to exactly 500 cm
(2011)
Reflux is a widely used technique in organic chemistry
Organic solids are frequently purified by recrystallization
Give two properties of cathode rays.
Define (i) atomic number, (ii) relative atomic mass.
