Chemistry Which of the following is secondary air pollutant ? SO2 NO2 Photochemical smog Dust particles SO2 NO2 Photochemical smog Dust particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicone is a polymer of Silane Tetraalkyl silane Silicon tetrachloride Dialkyl dichloro silane Silane Tetraalkyl silane Silicon tetrachloride Dialkyl dichloro silane ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the covalency of nitrogen in ammonia molecule 4 2 3 5 4 2 3 5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, which is always found in free-state in nature? Silver Sodium Gold Copper Silver Sodium Gold Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by man was copper gold iron bronze copper gold iron bronze ANSWER DOWNLOAD EXAMIANS APP
Chemistry The third shell of an atom can have a maximum of ______ electrons 21 13 15 18 21 13 15 18 ANSWER DOWNLOAD EXAMIANS APP
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