Qualitative Analysis (QA)

Another of Student X question to sean@simplechemconcepts.com to be shared with the world!

Question:
A certain solid has the following properties.
? It is insoluble in water.
? It gives off a gas when heated.
? It gives off a gas when added to dilute sulphuric acid.

Which of the following is the solid?
A. Sodium carbonate
B. Copper(II) carbonate
C. Iron (II) oxide
D. Zinc hydroxide

Student X’s suggested answer:
“What I think: Sodium carbonate is soluble in water. The two oxides, Iron (II) oxide and Zinc hydroxide reacts with dilute sulfuric acid to give only salt and water. Thus, my answer is B Copper(II) carbonate.”

DETERMINATION:
“Determine that the thing can and shall be done, and then we shall find the way”
– Abraham Lincoln

PS: Check out “Comments” below for suggested answer.