Question

Identify the substances P, Q, R, S and T from the given information:

(a) A deliquescent salt P turns yellow on dissolving in water and gives a reddish brown pecipitate with sodium hydroxide solution.

(b) A white crystalline solid Q which is soluble in water and liberates a pungent smelling gas when heated with soidum hydroxide.

(c) A pale green solid R turns reddish brown on heating. Its aqueous solution gives a white precipitate with barium chloride solution. The precipitate is insoluble in mineral acids.

(d) Reddish brown liquid S is dissolved in water when ethyne gas is passed through it, turns colourless.

(e) The nitrate T does not leave any residue on heating.

Answer 1

P=Ferric chloride
Q=Ammonium chloride
R=sodium sulphate
S=bromine
T=ammonium nitrate

Answer 2

Answer:

p=ferric chloride

q=ammonium chloride

r=sodium sulphate

s=bromine

t=ammonium nitrate