Chemistry Copper is refined by Oxidation Roasting Electrolysis Zone refining Oxidation Roasting Electrolysis Zone refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry Lead pencil contains Lead Graphite Lead sulphide Ferrous sulphide Lead Graphite Lead sulphide Ferrous sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Chromium Nickel Lead Zinc Chromium Nickel Lead Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used bleaching agent is sodium chlorine chlorine alcohol carbon dioxide sodium chlorine chlorine alcohol carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statements is not correct? Vulcanisation of rubber makes it Chemical resistant Withstand higher temperatures Soft and flexible Strong and hard Chemical resistant Withstand higher temperatures Soft and flexible Strong and hard ANSWER DOWNLOAD EXAMIANS APP
Chemistry If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? Ten million One million Two million Half a million Ten million One million Two million Half a million ANSWER DOWNLOAD EXAMIANS APP
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