Chemistry Which substance is used to retard the setting action of cement? Al2O3 Na2O + K2O CaSO4, 2H2O CaO Al2O3 Na2O + K2O CaSO4, 2H2O CaO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Chromium Cadmium Copper Lead Chromium Cadmium Copper Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of different elements have Different atomic number and same eletronic configu-ration Different atomic number and different number of valence electrons Same atomic number and same electronic configuration Same number of electrons and neutrons Different atomic number and same eletronic configu-ration Different atomic number and different number of valence electrons Same atomic number and same electronic configuration Same number of electrons and neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron filings can be separated from a heterogenous mixture using the technique of : Sedimentation Sublimation Evaporation Magnetization Sedimentation Sublimation Evaporation Magnetization ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular formula of phosphorous is P1 P3 P4 P2 P1 P3 P4 P2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen fixation is a process of Conversion of molecular nitrogen to ammonia Assimilation of nitrate Utilisation of nitrogen gas Conversion of organic nitrogen to proteins Conversion of molecular nitrogen to ammonia Assimilation of nitrate Utilisation of nitrogen gas Conversion of organic nitrogen to proteins ANSWER DOWNLOAD EXAMIANS APP
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