Chemistry What is the principal ore of aluminium ? Lignite Dolomite Bauxite Copper Lignite Dolomite Bauxite Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is the best fuel in terms of energy released per gram of fuel? Methane Butane Ethanol Hydrogen Methane Butane Ethanol Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used to recover copper from a solution of copper sulphate is Na Fe Hg Ag Na Fe Hg Ag ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Tetraethyl lead Tetramethyl lead Trimethyl lead Triethyl lead Tetraethyl lead Tetramethyl lead Trimethyl lead Triethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry The inherited traits of an organism are controlled by nucleotides enzymes RNA molecules DNA molecules nucleotides enzymes RNA molecules DNA molecules ANSWER DOWNLOAD EXAMIANS APP
Chemistry Name two elements that find wide application in transistor industry Silicon and Germanium Iridium and Germanium Carbon and Platinum Tungsten and Platinum Silicon and Germanium Iridium and Germanium Carbon and Platinum Tungsten and Platinum ANSWER DOWNLOAD EXAMIANS APP