Chemistry Williamson's synthesis is widely used in the laboratory preparation of Alcohols Esters Aldehydes Ethers Alcohols Esters Aldehydes Ethers ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are made from Sodium salt of benzene carboxylic acid Sodium stearate Sodium salt of benzene sulphonic acid Sodium palmitate Sodium salt of benzene carboxylic acid Sodium stearate Sodium salt of benzene sulphonic acid Sodium palmitate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by man was gold bronze copper iron gold bronze copper iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry For extinguishing fire, we use Hydrogen Carbon Dioxide Marsh gas Carbon Monoxide Hydrogen Carbon Dioxide Marsh gas Carbon Monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ethanol containing 5% water is known as Rectified spirit Methylated alcohol Power alcohol Denatured spirit Rectified spirit Methylated alcohol Power alcohol Denatured spirit ANSWER DOWNLOAD EXAMIANS APP
Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Iron Oxygen and Iron Oxygen and Silicon Silicon and Aluminium Silicon and Iron Oxygen and Iron Oxygen and Silicon Silicon and Aluminium ANSWER DOWNLOAD EXAMIANS APP
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