Chemistry Which of the following is a natural dye ? Aniline blue Alizarin Crystal violet Phenolphthalein Aniline blue Alizarin Crystal violet Phenolphthalein ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following laser types is used in a laser printer? Semiconductor laser Excimer laser Gas laser Dye laser Semiconductor laser Excimer laser Gas laser Dye laser ANSWER DOWNLOAD EXAMIANS APP
Chemistry The 'solid waste' is also known as Scrubber Sludge Toxic waste Sedge Scrubber Sludge Toxic waste Sedge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of Carbon dioxide Methane None of these Sulphur dioxide Carbon dioxide Methane None of these Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Chlorofluorocarbon Sulphur dioxide Nitrous oxide Carbon dioxide Chlorofluorocarbon Sulphur dioxide Nitrous oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron rusts quickly in Sea water River water Rain water Distilled water Sea water River water Rain water Distilled water ANSWER DOWNLOAD EXAMIANS APP
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