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Give formula for the following : a, Water glass b. Phosgene c. Litharge c. Red lead e. Butter of tin f . Drykold g. Chrome hyellow h. Carborundum i. Sugar of lead j. White lead .
Write down the reactions involved in the extraction of Pb . What of the oxidation number of lead in litharge ?
In experiment on the effect of heating on oxides of lead in a current of hydrogen the following results were obtained. Show that they are in agreement with the law of multiple proportions. a. 1.393 g of litharge (PbO) gave 1.293 g of lead b. 2.173 g of lead peroxide (PbO_(2)) gave 1.882 g of lead c. 1.712 g of red lead (Pb_(3) O_(4)) gave 1.552 g of lead