Chemistry Hardest allotrope of carbon is Coke Diamond Graphite Lamp black Coke Diamond Graphite Lamp black ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a lead storage battery is discharged, Sulphuric acid is consumed Lead is formed SO2 is evolved Lead sulphate is consumed Sulphuric acid is consumed Lead is formed SO2 is evolved Lead sulphate is consumed ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is lustrous because It is hard Its refractive index is high It is pure It is colourless It is hard Its refractive index is high It is pure It is colourless ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pollutant from motor car exhaust that causes mental disease is Lead Hg NO2 SO2 Lead Hg NO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals pollutes the air of a city having large number of automobiles? Chromium Cadmium Lead Copper Chromium Cadmium Lead Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 3 –3 to + 6 –3 to + 5 –3 to + 4 –3 to + 3 –3 to + 6 –3 to + 5 –3 to + 4 ANSWER DOWNLOAD EXAMIANS APP
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