Chemistry Which among the following coal contains 90 per cent of carbon? Lignite Peat Bitumen Anthracite Lignite Peat Bitumen Anthracite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Eutrophication Hardness Acidity Alkalinity Eutrophication Hardness Acidity Alkalinity ANSWER DOWNLOAD EXAMIANS APP
Chemistry Removal of carbon particles from air involves the principle of Precipitation Sedimentation Filteration Electrophoresis Precipitation Sedimentation Filteration Electrophoresis ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element required for solar energy conversion ? Ultra pure carbon Tantalum Beryllium Silicon Ultra pure carbon Tantalum Beryllium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a soluble salt in H2O CaCl2 Zn(OH)2 CuS PbCl2 CaCl2 Zn(OH)2 CuS PbCl2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin Magnesium, tin and iron Iron, tin and calcium Calcium, magnesium and iron Magnesium, calcium and tin Magnesium, tin and iron ANSWER DOWNLOAD EXAMIANS APP
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