The deliquescent salt P turns yellow on dissolving in water and gives a reddish brown precipitate with sodium hydroxide solution.The substance P is Ferric Chloride [FeCl3]
Identify the substances based on the information given below and choose the correct option:
The deliquescent salt P, turns yellow on dissolving in water, and gives a reddish brown precipitate with sodium hydroxide solution.
An aqueous solution of a salt (A) gives white precipitate (B) with sodium chloride solution. The filtrate gives a black precipitate. (C) When H2S is passed into it. Compound (B) dissolves in hot water and the solution gives a yellow precipitate (D) on treatment with sodium iodide. The compound (A) does not give any gas with dilute HCl but liberates a reddish brown gas on heating. Identify the compound (A) to (D).
|Column A||Column B|
|1.||A substance that turns moist starch
iodide paper blue.
|A. Ammonium sulphate|
|2.||A compound which releases a reddish
brown gas on reaction with concentrated
sulphuric acid and copper turnings.
|B. Lead carbonate|
|3.||A solution of this compound gives a dirty
green precipitate with sodium hydroxide.
|4.||A compound which on heating with sodium
hydroxide produces a gas which forms dense
white fumes with hydrogen chloride.
|D. Copper nitrate|
|5.||A white solid which gives a yellow residue
|E. Ferrous sulphate.|