Chemistry Which one of the following elements is used in the manufacture of safety matches? Sodium Graphite Silicon Phosphorus Sodium Graphite Silicon Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following, which one pollutes the air of a big city ? Copper Cadmium Lead Chromium Copper Cadmium Lead Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of carbon in cost iron is : 0.5 to 1.5 3 to 5 0.01 to 0.25 6 to 8 0.5 to 1.5 3 to 5 0.01 to 0.25 6 to 8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lowest layer of earth's atmosphere is Troposphere Stratosphere Ionosphere Mesosphere Troposphere Stratosphere Ionosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Alcoholic (– OH) group can be identified by : Ozonolysis Reaction FeCl3Test Esterification Test Tollen's Reagent Test Ozonolysis Reaction FeCl3Test Esterification Test Tollen's Reagent Test ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Conversion of water into steam Digestion of food Burning of coal Burning of paper Conversion of water into steam Digestion of food Burning of coal Burning of paper ANSWER DOWNLOAD EXAMIANS APP
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