Chemistry Which of the following elements is non-radioactive ? Plutonium Zirconium Thorium Uranium Plutonium Zirconium Thorium Uranium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Tetramethyl lead Trimethyl lead Tetraethyl lead Triethyl lead Tetramethyl lead Trimethyl lead Tetraethyl lead Triethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has no unit Electronegativity Ionization energy Excitation potential Electron affinity Electronegativity Ionization energy Excitation potential Electron affinity 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 ? Zero 18 6 12 Zero 18 6 12 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Coal fire Burning coal Steam engine Burning garbage Coal fire Burning coal Steam engine Burning garbage ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metallic constituents of hard water are : Iron, tin and calcium Magnesium, tin and iron Magnesium, calcium and tin Calcium, magnesium and iron Iron, tin and calcium Magnesium, tin and iron Magnesium, calcium and tin Calcium, magnesium and iron ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS