Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 4 –3 to + 6 –3 to + 3 –3 to + 5 –3 to + 4 –3 to + 6 –3 to + 3 –3 to + 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Colloids can be purified by Condensation Condensation Dialysis Condensation Condensation Condensation Dialysis Condensation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element in the earth’s atmosphere is Krypton Nitrogen Oxygen Argon Krypton Nitrogen Oxygen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Siderite Magnetite Pyrolusite Galena Siderite Magnetite Pyrolusite Galena ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Anthracite Lignite Bituminous Peat Anthracite Lignite Bituminous Peat ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of Nitrogen in Air is 85.02 0.94 78.03 0.03 85.02 0.94 78.03 0.03 ANSWER DOWNLOAD EXAMIANS APP
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