Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Non-combustible More stable More abundant than hydrogen Lighter than hydrogen Non-combustible More stable More abundant than hydrogen Lighter than hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Burning of paper Digestion of food Burning of coal Conversion of water into steam Burning of paper Digestion of food Burning of coal Conversion of water into steam ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first organic compound synthesised in the laboratory was Lactic acid Urea Uric acid Glucose Lactic acid Urea Uric acid Glucose ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is adding sodium carbonate adding caustic soda boiling distillation adding sodium carbonate adding caustic soda boiling distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas involved in Bhopal incident was Nitrogen dioxide Methyl chloride Hydrogen sulphide Methyl isocyanide Nitrogen dioxide Methyl chloride Hydrogen sulphide Methyl isocyanide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The open "Sigrees" or coal stoves often require fanning to sustain burning because of Interrupted release of moisture from the material Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Lack of oxygen in the surroundings of sigrees Interrupted release of moisture from the material Accumulation of smoke and dust over the sigrees Tendency of carbon dioxide to form a layer along with dust smoke Lack of oxygen in the surroundings of sigrees ANSWER DOWNLOAD EXAMIANS APP
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