Chemistry The coloured discharge tubes for advertisement mainly contain Helium Neon Argon Xenon Helium Neon Argon Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Carbon dioxide Nitric oxide Peroxyacetyl nitrate Sulphur dioxide Carbon dioxide Nitric oxide Peroxyacetyl nitrate Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is used in photography ? Aluminium hydroxide Silver bromide Potassium nitrate Sodium chloride Aluminium hydroxide Silver bromide Potassium nitrate Sodium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Name two elements that find wide application in transistor industry Silicon and Germanium Carbon and Platinum Iridium and Germanium Tungsten and Platinum Silicon and Germanium Carbon and Platinum Iridium and Germanium Tungsten and Platinum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O3 layer CO2 layer SO2 layer O 2 layer O3 layer CO2 layer SO2 layer O 2 layer ANSWER DOWNLOAD EXAMIANS APP
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