Chemistry Cement is usually a mixture of : Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate Calcium aluminate and calcium ferrate Lime stone and silicon dioxide Calcium silicate and calcium aluminate Calcium silicate and calcium ferrate Calcium aluminate and calcium ferrate Lime stone and silicon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is always more than the atomic weight a fraction the sum of the number of protons and neutrons present in the nucleus always less than its atomic number always more than the atomic weight a fraction the sum of the number of protons and neutrons present in the nucleus always less than its atomic number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? There is a crackling sound There is no reaction. There is a violent explosion. The paper ignites There is a crackling sound There is no reaction. There is a violent explosion. The paper ignites ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rectified spirit is : 100% ethyl alcohol Methylated spirit Tincture iodine 95% ethyl alcohol 100% ethyl alcohol Methylated spirit Tincture iodine 95% ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Saline soil contains None of these Lot of moisture Hard rocks High concentration of salt None of these Lot of moisture Hard rocks High concentration of salt ANSWER DOWNLOAD EXAMIANS APP
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