Question

an alloy reacted with dilute hydrochloric acid to produce a gas which pops a lighted splint the residue reacted with dilute nitric acid to form a blue solution which one of the following pairs of metal is present in the alloy ​

Answer 1

Explanation:

The gas produced on reaction of dilute sulphuric acid with a metallic sulphide:(b) State one observation for each of the following:

(A) Sodium Chloride solution

(B) Dilute Hydrochloric acid

Answer 2

Answer:

if an alloy reacts with dilute hydrochloric acid to produce a gas which pops a lighted splint, the residue reacted with nitric acid to form a blue solution will be :

(A)zinc

(B) copper

Explanation: zinc reacts with hydrochloric acid to form hydrogen gas which pops a lighted splint. the residue which is copper when reacts with dilute nitric acid to form a blue solution.