Chemistry What is the element that is in the highest percentage in the composition of the earth ? Magnesium Iron Silicon Oxygen Magnesium Iron Silicon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Persons working in cement plants and lime stone quarries are prone to disease like Pneumoconiosis Cancer Asthma Silicosis Pneumoconiosis Cancer Asthma Silicosis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metal pollution of water is caused by: Paints Domestic sewage Wood burning Acid Plants Paints Domestic sewage Wood burning Acid Plants ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of carbon in cost iron is : 0.01 to 0.25 6 to 8 3 to 5 0.5 to 1.5 0.01 to 0.25 6 to 8 3 to 5 0.5 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Williamson's synthesis is widely used in the laboratory preparation of Esters Alcohols Aldehydes Ethers Esters Alcohols Aldehydes Ethers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following commonly used materials, the one that is not an alloy is Bronze Steel Brass Copper Bronze Steel Brass Copper ANSWER DOWNLOAD EXAMIANS APP
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