Chemistry The structure of NaCl crystal is Face centered cubic Square planar Octahedral Body centered cubic Face centered cubic Square planar Octahedral Body centered cubic ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Green house effect Eutrophication Smog None of these Green house effect Eutrophication Smog None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of replenishable energy source is– Coal Biomass Petroleum Lignite Coal Biomass Petroleum Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not present in cement ? Alumina Gypsum Alum Clay Alumina Gypsum Alum Clay ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rusting of iron takes place due to Corrosion Oxidation Carbonation Exfoliation Corrosion Oxidation Carbonation Exfoliation ANSWER DOWNLOAD EXAMIANS APP