Chemistry The octane number of zero is assigned to n-heptane iso-octane 2-methyl octane 3-methyl octane n-heptane iso-octane 2-methyl octane 3-methyl octane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? Al2O3 CaSO4, 2H2O CaO Na2O + K2O Al2O3 CaSO4, 2H2O CaO Na2O + K2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry powder fire extinguishers contain Sand Sand and sodium bicarbonate Sand and potassium carbonate Sand and sodium carbonate Sand Sand and sodium bicarbonate Sand and potassium carbonate Sand and sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Cement is made hard with Hydration and dissociation of water Dissociation of water Polymerisation Dehydration Hydration and dissociation of water Dissociation of water Polymerisation Dehydration ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Phosphorus-31 Tritium Radium Carbon-14 Phosphorus-31 Tritium Radium Carbon-14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the best fuel in terms of energy released per gram of fuel? Methane Ethanol Hydrogen Butane Methane Ethanol Hydrogen Butane ANSWER DOWNLOAD EXAMIANS APP
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