Chemistry Which of the following is used as a lubricant in heavy machines? Graphite Bauxite Phosphorus Sulphur Graphite Bauxite Phosphorus Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium borate Calcium chloride Calcium phosphate Calcium sulphate Calcium borate Calcium chloride Calcium phosphate Calcium sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? The paper ignites There is no reaction. There is a violent explosion. There is a crackling sound The paper ignites There is no reaction. There is a violent explosion. There is a crackling sound ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals can displace copper from copper sulphate solution ? Mercury Platinum Iron Gold Mercury Platinum Iron Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry The octane number of zero is assigned to n-heptane 3-methyl octane 2-methyl octane iso-octane n-heptane 3-methyl octane 2-methyl octane iso-octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Physico-chemical characteristics of water in water sources undergo changes due to Effluents Evapotranspiration Aquatic macrophytes Auatic fungi Effluents Evapotranspiration Aquatic macrophytes Auatic fungi ANSWER DOWNLOAD EXAMIANS APP
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