Metals and Non-...

Which of the following metals exist in their native state in nature?

(i) Cu

(ii) Au

(iii) Zn

(iv) Ag

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

(i) Au

(ii) Cu

(iii) Na

(iv) K

Silver articles become black on prolonged exposure to air. This is due to the formation of

Galvanisation is a method of protecting iron from rusting by coating with a thin layer of

Stainless steel is very useful material for our life. In stainless steel, iron is mixed with

If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of

Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?

Which of the following metals are obtained by electrolysis of their chlorides in molten state?

(i) Na

(ii) Ca

(iii) Fe

(iv) Cu

Generally, non-metals are not lustrous. Which of the following non-metal is lustrous?

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