Chemistry 5070 · O Level · Identification of ions and gases

Identification of ions and gases — practice question

A sample of white powder, X, is dissolved in water. Separate portions of this solution are tested, and the observations are recorded in the table. What is X?

Aaluminium chloride
Baluminium sulfate
Ccalcium chloride
Dcalcium sulfate

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

Full mark scheme, point by point
Step-by-step worked solution
Write your answer & get it marked instantly by AI