Chemistry The element used for making solar cells is Sodium Calcium Magnesium Silicon Sodium Calcium Magnesium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium is added to the oxygen supply of deep sea divers because it is Lighter than nitrogen Less soluble in blood than nitrogen at high pressure Less poisonous than nitrogen Readily miscible with oxygen Lighter than nitrogen Less soluble in blood than nitrogen at high pressure Less poisonous than nitrogen Readily miscible with oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the components responsible for acid rain? Oxides of carbon (COx) and Oxides of nitrogen (NOx) Carbon dioxide (CO2) and Carbon monoxide (CO) Nitrogen monoxide (NO) and Carbon monoxide (CO) Sulphur dioxide (SO2) and Nitrogen oxides (NOx) Oxides of carbon (COx) and Oxides of nitrogen (NOx) Carbon dioxide (CO2) and Carbon monoxide (CO) Nitrogen monoxide (NO) and Carbon monoxide (CO) Sulphur dioxide (SO2) and Nitrogen oxides (NOx) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alkali metals has highest specific heat? Lithium Rubidium Caesium Potassium Lithium Rubidium Caesium Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of Cobalt in Vitamin B12 was established for the first time by Spectroscopy Borax-Bead test Hydrolysis test Sodium Nitroprusside test Spectroscopy Borax-Bead test Hydrolysis test Sodium Nitroprusside test ANSWER DOWNLOAD EXAMIANS APP
Chemistry Earth’s atmosphere is an envelope of gases extending to a height of 200 km 300 km 100 km 150 km 200 km 300 km 100 km 150 km ANSWER DOWNLOAD EXAMIANS APP
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