State the clour of -
Copper [II] hydroxide solution after addition of ammonium hydroxide in excess to it .

State the clour of - The solution obtained on addition of excess ammonium hydroxide to zinc sulphate solution.

Name a hydroxide which is soluble in excess of ammonium hydroxide.

Name : a hydroxide which is soluble in excess of ammonium hydroxide.

Salts P, Q,R,S,T,U and V undergo reactions (i) to (vii) respectively. Identify the cation present in these salts on the basis of these reactions. Tabulate your answer in the formate given below. (i) When the salt Pis heated with sodium hydroxide solution a vigorous reaction takes place and a colourless gas is evolved with a pungent and suffocating smell that brings tears in our eyes. The evolved gas gives dense white fumes with a moist glass rod depped with hydrochloric acid. (ii) Addition of sodium hydroxide solution to a solution of salt Q gives a thick white precipitae which is soluble in excess of sodium hydroxide solution to form a clear solution. (iii) Addition of ammonium hydroxide solution to a solution of salt R gives a dark blue precipitate which is soluble is excess of ammonium hydroxide solution to form an intense deep blue solution. (iv) Addition of ammonium hydroxide solution to a solution of 5 gives a dirty green [bottle green] precipitate which is insoluble even in the excess of ammonium hydroxide solution. (v) Addition of ammonium hydroxide solution to a solution of T gives a reddish brown (rust precipitate] precipitate which is insoluble even in the excess of ammonium hydroxide solution. (vi) Addition of ammonium hydroxide solution to a solution of V gives a geletaneous white precipitate which is soluble in excess of ammonium hydroxide solution to form a clear solution. (vii) Addition of ammonium hydroxide solution to a solution of V gives no precipitate but it gives a chalky white precipitate with sodium hydroxide solution which is insoluble even in the excess of sodium hydroxide solution.

When to a copper sulphate solution , excess of ammonium hydroxide added then

The number of moles of Ammonium Hydroxide in 420 g is

Explain the following: (i). Copper hydroxide is soluble in ammonium hydroxide but not in sodium hydroxide. (ii). A dark blue precipitate is formed when sodium hydroxide solution is added to copper sulphate solution. The precipitate darkens on heating.

Explain the following facts: (a). Copper hydroxide is soluble in ammonium hydroxide but not in sodium hydeoxide. (b). Addition of an alkali to cuprous chloride solution gives a yellow precipitate which gradually changes to a red colour.

State one appropriate observation for each of the following: A few drops of dilute hydrochloric acid are added to silver nitrate solution, followed by addition of ammonium hydroxide solution.

State one appropriate observation A few drops of dilute hydrochloric acid are added to silver nitrate solution, followed by addition of ammonium hydroxide solution.