Chemistry Browning of paper in old books is caused by Lack of aeration Oxidation of cellulose Collection of dust Frequent use Lack of aeration Oxidation of cellulose Collection of dust Frequent use ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of fertilizers ? Potassium Fluorine Lead Aluminium Potassium Fluorine Lead Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is used as a catalyst in the hydrogenation of oils is Ni Cu Pt Pb Ni Cu Pt Pb ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following phenomenon is considered responsible for Global Warming? Fire in coal mines Dry farming Trade winds Greenhouse effect Fire in coal mines Dry farming Trade winds Greenhouse effect ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical composition of cement is Limestone, Clay and Gypsum Limestone and Gypsum Clay and Gypsum Limestone and Clay Limestone, Clay and Gypsum Limestone and Gypsum Clay and Gypsum Limestone and Clay ANSWER DOWNLOAD EXAMIANS APP
Chemistry Thermal electricity is generated by using which of these ? Coal only Coal and Natural Gas only None of these Coal, Natural Gas and Petroleum Coal only Coal and Natural Gas only None of these Coal, Natural Gas and Petroleum ANSWER DOWNLOAD EXAMIANS APP
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