Chemistry The lustre of the metals is because of Reflection of light due to the presence of free electrons High polish High density, due to closed packing of atoms Absorption of light due to the presence of cavities Reflection of light due to the presence of free electrons High polish High density, due to closed packing of atoms Absorption of light due to the presence of cavities ANSWER DOWNLOAD EXAMIANS APP
Chemistry In a reaction of the type A+B ? C+D one could ensure it to be a first order reaction by : Increasing the temperature Increasing the concentration of a reactant Adding a catalyst Increasing the concentration of a product Increasing the temperature Increasing the concentration of a reactant Adding a catalyst Increasing the concentration of a product ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silk fibre chemically is : Carbohydrate Fat Cellulose Protein Carbohydrate Fat Cellulose Protein ANSWER DOWNLOAD EXAMIANS APP
Chemistry Commercially, sodium bicarbonate is known as Baking soda Bleaching powder Soda ash Washing soda Baking soda Bleaching powder Soda ash Washing soda ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used for cloud seeding for artificial rains is Potassium Bromide Silver Iodide Silver Nitrate Potassium Nitrate Potassium Bromide Silver Iodide Silver Nitrate Potassium Nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Peat Bituminous Anthracite Lignite Peat Bituminous Anthracite Lignite ANSWER DOWNLOAD EXAMIANS APP