In the two experiments described below, anhydrous potassium chloride is used and the results labelled X and Y are noted at the end of each one. Concentrated sulfuric acid is added to the potassium chloride, and the fumes given off are passed through aqueous potassium iodide solution – observation X. The potassium chloride is first dissolved in aqueous ammonia, and this solution is then mixed with aqueous silver nitrate – observation Y. What are observations X and Y?
- AX: brown solution; Y: colourless solution
- BX: brown solution; Y: white precipitate
- CX: colourless solution; Y: colourless solution
- DX: colourless solution; Y: white precipitate