Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Ozone Hydrogen peroxide Barium peroxide Sodium peroxide Ozone Hydrogen peroxide Barium peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Table salt gets moist during rainy season because Sodium chloride is hygroscopic Sodium chloride is deliquescent Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride contains some quantity of sodium iodide Sodium chloride is hygroscopic Sodium chloride is deliquescent Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride contains some quantity of sodium iodide ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a common name for the substance which irritates lachrymal glands ? Tear Gas Noble Gas Anaesthetic Gas Laughing Gas Tear Gas Noble Gas Anaesthetic Gas Laughing Gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O3 layer SO2 layer O 2 layer CO2 layer O3 layer SO2 layer O 2 layer CO2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Many people died in London in 1952 as result of air pollution producing Sleet Smog Fog Mist Sleet Smog Fog Mist ANSWER DOWNLOAD EXAMIANS APP
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