Chemistry
Solution A reacts with an acid B (which gives greenish yellow gas on reacting with oxidising agents like Pb3O4) to give white precipitate C insoluble in nitric acid but soluble in ammonium hydroxide. Name A, B and C.
Answer
A → Silver nitrate
B → Hydrochloric acid
C → Silver chloride
Explanation
Solution A is silver nitrate which reacts with acid B i.e., Hydrochloric acid to give a white precipitate C of AgCl which is insoluble in nitric acid but soluble in ammonium hydroxide.
AgNO3 + HCl ⟶ AgCl ↓ + HNO3
AgNO3 + HNO3 ⟶ no reaction
AgCl + 2NH4OH ⟶ [Ag(NH3)2Cl)] + 2H2O
Related Questions
Name :
(a) a black metallic oxide which reacts with hydrochloric acid to give a coloured solution.
(b) two colourless gases, which when mixed produce a white solid
(c) two gases which chemically combine to form a liquid.
(d) a chloride which is soluble in excess of ammonium hydroxide.
(e) the chemical in which gold can be dissolved.
(f) the experiment which demonstrates that hydrogen chloride is soluble in water.
(g) the gas produced when chlorine water is exposed to sunlight.
(h) the acid which on mixing with silver nitrate solution produces a white precipitate which is soluble in excess of ammonium hydroxide.
(i) the gas which produces dense white fumes with ammonia gas.
(j) an element which reacts with hydrogen to form compound which is strongly acidic in water.
Identify the gas evolved when :
(i) Potassium sulphite is treated with dilute hydrochloric acid.
(ii) Concentrated hydrochloric acid is made to react with manganese dioxide.
A solution of hydrogen chloride in water is prepared.
The following substances are added to separate portions of the solution:
S. No. Substances added Gas evolved Odour 1 Calcium carbonate 2 Magnesium ribbon 3 Manganese(IV) oxide with heating 4 Sodium sulphide Complete the table by writing the gas evolved in case and it's odour.
Complete and balance the following reactions, state whether dilute or conc. acid is used.
(a) NH4OH + HCl ⟶
(b) NaHSO3 + HCl ⟶
(c) Pb(NO3)2 + HCl ⟶
(d) Pb3O4 + HCl ⟶