Chemistry Highly toxic gas which causes headache, visual difficulty, paralysis and even death is CO2 All of these CO O3 CO2 All of these CO O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is used in Transistors Solar energy devices Semiconductors All of these Transistors Solar energy devices Semiconductors All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Reduced crop yield Respiratory diseases (e.g.asthma) Silicosis Cancer Reduced crop yield Respiratory diseases (e.g.asthma) Silicosis Cancer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is found in chlorophyll ? A l3+ Fe2+ Ca2+ Mg2+ A l3+ Fe2+ Ca2+ Mg2+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of Unburnt petrol CO2 CO SO2 Unburnt petrol CO2 CO SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The total energy of revolving electron in an atom Can have any value above zero Cannot be negative Will always be positive Can never be positive Can have any value above zero Cannot be negative Will always be positive Can never be positive ANSWER DOWNLOAD EXAMIANS APP
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