Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of carbon and nitrogen Oxides of nitrogen and sulphur Oxides of nitrogen and phosphorous None of these Oxides of carbon and nitrogen Oxides of nitrogen and sulphur Oxides of nitrogen and phosphorous None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water is Rain water Ground water Distilled water Tap water Rain water Ground water Distilled water Tap water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number is the number equal to Protons None of these Electrons Neutrons Protons None of these Electrons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Concentration of a material which is lethal to 50% animal is called LC50 NOAEL LD50 ADI LC50 NOAEL LD50 ADI ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element from below list is liquid at room temperature Lead Argon Bromine Zinc Lead Argon Bromine Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 6 –3 to + 5 –3 to + 3 –3 to + 4 –3 to + 6 –3 to + 5 –3 to + 3 –3 to + 4 ANSWER DOWNLOAD EXAMIANS APP
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