Chemistry The most electropositive elements among the following is Ca Na K Cs Ca Na K Cs ANSWER DOWNLOAD EXAMIANS APP
Chemistry The heaviest naturally occurring element is: Polonium Uranium Mercury Thorium Polonium Uranium Mercury Thorium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Nitrates of aluminium Double sulphates Double nitrate Hydrated chlorides Nitrates of aluminium Double sulphates Double nitrate Hydrated chlorides ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is not present in stainless steel? Chromium Tungsten Iron Nickel Chromium Tungsten Iron Nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Need less energy to move them Experience collision less frequently Are lighter Have negative charge Need less energy to move them Experience collision less frequently Are lighter Have negative charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Proton Beta particles Positron Alpha particles Proton Beta particles Positron Alpha particles ANSWER DOWNLOAD EXAMIANS APP
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