Chemistry The most abundant element is Oxygen Calcium Silicon Nitrogen Oxygen Calcium Silicon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of nitrogen and phosphorous None of these Oxides of nitrogen and sulphur Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous None of these Oxides of nitrogen and sulphur Oxides of carbon and nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a naturally occuring noble gas Argon Boron Sodium Potassium Argon Boron Sodium Potassium ANSWER DOWNLOAD EXAMIANS APP
Chemistry What material is used to make electric heater coil ? Nichrome Silver Copper Iron Nichrome Silver Copper Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Impure camphor is purified by Fractional crystallisation Steam distillation Sublimation Fractional distillation Fractional crystallisation Steam distillation Sublimation Fractional distillation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galena is a mineral of Gold Iron Calcium Lead Gold Iron Calcium Lead ANSWER DOWNLOAD EXAMIANS APP
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