Chemistry Browning of paper in old books is caused by Frequent use Lack of aeration Collection of dust Oxidation of cellulose Frequent use Lack of aeration Collection of dust Oxidation of cellulose ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O3 layer CO2 layer O 2 layer SO2 layer O3 layer CO2 layer O 2 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following laser types is used in a laser printer? Dye laser Excimer laser Gas laser Semiconductor laser Dye laser Excimer laser Gas laser Semiconductor laser ANSWER DOWNLOAD EXAMIANS APP
Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 2 : 16 : 1 2 : 16 : 2 1 : 1 : 1 1 : 16 : 2 2 : 16 : 1 2 : 16 : 2 1 : 1 : 1 1 : 16 : 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Two moles of an ideal gas expand freely into vacuum. The work done by the gas is Infinity 2J 4J Infinity 2J 4J ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most commonly used bleaching agent is Carbon dioxide Alcohol Chlorine Sodium chloride Carbon dioxide Alcohol Chlorine Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
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