On passing `SO_2` gas through calcium hydroxide, we get a white precipitate of

On passing SO_3 gas through CS_2 , it produces

Why calcium hydroxide is used in white washing?

Why calcium hydroxide is used in white washing?

An aqueous solution of colourless metal sulphate M , gives a white precipitate with NH_(4)OH .This was soluble in excess of NH_(4)OH . On passing H_(2)S through this solution a white precipitate is formed.The metal M in the salt is:

H_(2)S gas on passing through an alkline solution , forms a white precipitate .The solution contains ions of

A black solid P dissolves in warm and dilute HCI to form greenish yellow solution Q, but does not give off any gas. The solution Q on treating with ammonium hydroxide forms bluish white precipitates of R. The precipitates of R dissolve in excess of ammonium hydroxide. solution to form deep-blue colouration. Identify solid P and bluish white precipitates of R. Write equations for action of excess of ammonium hydroxide on R.

A black solid P dissolves in warm and dilute HCI to form greenish blue solution Q, but does not give off any gas. The solution Q on treating with ammonium hydroxide forms bluish white precipitates of R. The precipitates of R dissolve in excess of ammonium hydroxide. solution to form deep-blue colouration. Identify solid P and bluish white precipitates of R. Write equations for Action of less amount of ammonium hydroxide on Q.

When H_2S is passed through acidified zinc sulphate solution, white precipitate of zinc sulphide is not formed.

On passing ammonia gas through a copper sulphate solution _____ precipitate is formed. [greenish yellow/ pale blue]

The salt which in solution gives a pale green precipitate with sodium hydroxide solution and a white precipitate with barium chloride solution is