Chemistry Supersonic jet causes pollution by thinning of O3 layer O 2 layer CO2 layer SO2 layer O3 layer O 2 layer CO2 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, carbonate ore of Zinc is Sphalerite Zincblende Zincite Calamine Sphalerite Zincblende Zincite Calamine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The oxidation number of nickel in K4[Ni(CN)4] is 8 Zero 4 –4 8 Zero 4 –4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Sulphur dioxide Carbon dioxide Nitrous oxide Hydrocarbons Sulphur dioxide Carbon dioxide Nitrous oxide Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements in the modern Periodic table are arranged according to their Atomic number Mass number Neutron number Atomic Weight Atomic number Mass number Neutron number Atomic Weight ANSWER DOWNLOAD EXAMIANS APP
Chemistry The inert gases are ____ in water insoluble sparingly soluble None of these soluble insoluble sparingly soluble None of these soluble ANSWER DOWNLOAD EXAMIANS APP
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