Chemistry Element 106 was discovered by Lawrence Rutherford Kurchatove Seaborg Lawrence Rutherford Kurchatove Seaborg ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most important ore of lead is Galena Siderite Magnetite Pyrolusite Galena Siderite Magnetite Pyrolusite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compounds formed when hydrogen combines with p-block elements are called Polynuclear hydrides Metallic hydrides Molecular hydrides Ionic hydrides Polynuclear hydrides Metallic hydrides Molecular hydrides Ionic hydrides ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mixture can be Homogeneous Pure substance Both A and B Heterogeneous Homogeneous Pure substance Both A and B Heterogeneous ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance most commonly used as a food preservative is Sodium salt of benzoic acid Sodium carbonate Acetic acid Tartaric acid Sodium salt of benzoic acid Sodium carbonate Acetic acid Tartaric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of major air pollutant is Oxygen Helium Carbon dioxide Carbon monoxide Oxygen Helium Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP