Chemistry The first metal used by a man was Silver Brass Bronze Copper Silver Brass Bronze Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed the model of atomic structure ? Bohr and Rutherford Volta Faraday Alfred Nobel Bohr and Rutherford Volta Faraday Alfred Nobel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of a hydrogen atom consists of 1 electron only 1 proton only 1 neutron only 1 proton + 2 neutron 1 electron only 1 proton only 1 neutron only 1 proton + 2 neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Alum is used as A disinfectant A fertilizer A purifier for water An analgesic A disinfectant A fertilizer A purifier for water An analgesic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rock salt is a mineral containing Sodium Magnesium Potassium Iron Sodium Magnesium Potassium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron rusts quickly in River water Distilled water Sea water Rain water River water Distilled water Sea water Rain water ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS