Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is hydrogen nitrogen carbon oxygen hydrogen nitrogen carbon oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? Petrol is too inflammable to be extinguished by water The oxygen content of water is isolated by petrol and thus it helps in burning Water, being heavy, slips below petrol which thus remains in contact with air and burns The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water The oxygen content of water is isolated by petrol and thus it helps in burning Water, being heavy, slips below petrol which thus remains in contact with air and burns The heat required for combustion of petrol is very low ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sullage water is – Waste water released from hospitals Waste water released from kitchen Waste water released from toilets Waste water released from factories Waste water released from hospitals Waste water released from kitchen Waste water released from toilets Waste water released from factories ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Carbon monoxide Carbon dioxide Water vapour Ozone Carbon monoxide Carbon dioxide Water vapour Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stalactites and Stalagmites form due to the precipitation of : MgCO3 MgCl2 CaCO3 CaCl2 MgCO3 MgCl2 CaCO3 CaCl2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following has a maximum tendency to form M3 ion ? As Bi N P As Bi N P ANSWER DOWNLOAD EXAMIANS APP
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