Chemistry The minimum energy required for an effective collision is Activation energy Internal energy Threshold energy Free energy Activation energy Internal energy Threshold energy Free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Name two elements that find wide application in transistor industry Iridium and Germanium Carbon and Platinum Tungsten and Platinum Silicon and Germanium Iridium and Germanium Carbon and Platinum Tungsten and Platinum Silicon and Germanium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? White phosphorus Black phosphorus Red phosphorus Violet phosphorus White phosphorus Black phosphorus Red phosphorus Violet phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following will replace hydrogen from acids to form salts ? S P Ag Na S P Ag Na ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Helium Krypton Argon Xenon Helium Krypton Argon Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Aluminium Oxygen and Iron Oxygen and Silicon Silicon and Iron Silicon and Aluminium Oxygen and Iron Oxygen and Silicon Silicon and Iron ANSWER DOWNLOAD EXAMIANS APP