Chemistry Name two elements that find wide application in transistor industry Iridium and Germanium Tungsten and Platinum Silicon and Germanium Carbon and Platinum Iridium and Germanium Tungsten and Platinum Silicon and Germanium Carbon and Platinum ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main source of Naphthalene is Camphor Coal-tar Diesel Charcoal Camphor Coal-tar Diesel Charcoal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who is known as the 'father of modern chemistry' John Dalton Democritus Antoine Lavoisier Robert Boyle John Dalton Democritus Antoine Lavoisier Robert Boyle ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a method of preparing oxygen? Electrolysis of water Decomposition of potassium permanganate Fractional distillation of liquid air Decomposition of manganese dioxide Electrolysis of water Decomposition of potassium permanganate Fractional distillation of liquid air Decomposition of manganese dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is a mixture of potassium nitrate, powdered charcoal and sulphur called? Glass Cement Gun powder Paint Glass Cement Gun powder Paint ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Heavy metals Noble gases Halogens Light metals Heavy metals Noble gases Halogens Light metals ANSWER DOWNLOAD EXAMIANS APP
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