Chemistry Supersonic jet causes pollution by thinning of CO2 layer O3 layer O 2 layer SO2 layer CO2 layer O3 layer O 2 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for artificial ripening of green fruit is acetylene carbon dioxide ethylene ethane acetylene carbon dioxide ethylene ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Halogens Light metals Noble gases Heavy metals Halogens Light metals Noble gases Heavy metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following was used as a chemical weapon in the first world war ? Water gas Hydrogen cyanide Carbon monoxide Mustard gas Water gas Hydrogen cyanide Carbon monoxide Mustard gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Krypton Argon Helium Xenon Krypton Argon Helium Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry In its reaction with silver nitrate, C2H2 shows Basic property Oxidising property Acidic property Reducing property Basic property Oxidising property Acidic property Reducing property ANSWER DOWNLOAD EXAMIANS APP
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