Chemistry Among the following, which is always found in free-state in nature? Silver Copper Gold Sodium Silver Copper Gold Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used bleaching agent is alcohol chlorine carbon dioxide sodium chlorine alcohol chlorine carbon dioxide sodium chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry If lime water is kept in the air, it turns milky due to presence of : Oxygen Carbondioxide Sulphurdioxide Nitrogen Oxygen Carbondioxide Sulphurdioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 12 6 Zero 18 12 6 Zero 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Mercury oxide and neon Mercury vapour and argon Sodium oxide and argon Sodium vapour and neon Mercury oxide and neon Mercury vapour and argon Sodium oxide and argon Sodium vapour and neon ANSWER DOWNLOAD EXAMIANS APP