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

70 In stainless steel alloy, iron metal is mixed with 71 If copper is kept exposed to damp air for a considerable time, it gets a green coating on its surface. This is due to the formation of: 73 Which of the following is an ore of mercury metal?

Options||A. rock salt

B. cinnabar

C. calamine

D. haematite

74 Calamine ore can be used to extract one of the following metals. This metal is: