Chemistry Which of the following is the major constituent of LPG? Propane Ethane Butane Methane Propane Ethane Butane Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Zinc Mercury Copper Lead Zinc Mercury Copper Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iodex, a pain relief balm, has the smell of ________ . Methyl salicylate Ethyl salicylate Butyl salicylate Propyl salicylate Methyl salicylate Ethyl salicylate Butyl salicylate Propyl salicylate ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Protons Electrons Positrons Neutrons Protons Electrons Positrons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Are lighter Need less energy to move them Experience collision less frequently Have negative charge Are lighter Need less energy to move them Experience collision less frequently ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Chlorine Sulphur dioxide Freon Phosphine Chlorine Sulphur dioxide Freon Phosphine ANSWER DOWNLOAD EXAMIANS APP
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