How many atoms of sulfur are present in one molecule of sulfur?

Which substance is used for the chemical reduction of metal oxides like chromium and manganese to obtain the metal?

Which one of the following four metals would be displaced from the solution of its salts by the other three metals?

Generally,non-metals are not conductors of electricity. Which of the following is a good conductor of electricity?

In the electrolytic refining of metals, the insoluble impurities present in the impure metal settle down at the bottom of the container below the anode. What is this called?

Which among the following alloys contains mercury as one of its constituents?