Chemistry Quiz 3

Chemistry Quiz 3

1. The first metal used by man was





2. The ionic radii of N3-, O2-, F- and Na+ follows the order





3. The inexpensive and commonly used variety of glass is called soda glass. It is called so because





4. The material which can be deformed permanently by heat and pressure is called a





5. The mass of one Avogadro number of helium atom is





6. The graphite rods in the nuclear reactor





7. The gas used in the manufacture of vanaspati from vegetable oil is





8. The mass number of a nucleus is





9. The items amenable to detection by soft x-rays are





10. The number of waves in n x 10th Bohr's orbit are