Chemistry Which one of the following is used for dating very old objects of archaeological importance? Radium Tritium Carbon-14 Phosphorus-31 Radium Tritium Carbon-14 Phosphorus-31 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who first published the periodic table Henry Moseley Julius Lothar Meyer Dmitri Mendeleev John Dalton Henry Moseley Julius Lothar Meyer Dmitri Mendeleev John Dalton ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most common salt in sea water ? Magnesium sulphate Potassium chloride Calcium carbonate Sodium chloride Magnesium sulphate Potassium chloride Calcium carbonate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The addition of gypsum to portland cement helps in : Preventing rapid setting of cement Rapid setting of cement Reduction in the cost of cement Increasing the strength of cement Preventing rapid setting of cement Rapid setting of cement Reduction in the cost of cement Increasing the strength of cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry In its reaction with silver nitrate, C2H2 shows Reducing property Acidic property Oxidising property Basic property Reducing property Acidic property Oxidising property Basic property ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stainless steel is usually made by alloying the steel with Manganese and copper Copper and nickel Chromium and nickel Copper and chromium Manganese and copper Copper and nickel Chromium and nickel Copper and chromium ANSWER DOWNLOAD EXAMIANS APP
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