Question

Which of the following is a suitable test to identify presence of chlorine atoms or ions?

(a) Acidify the given compound and add silver nitrate

(b) Add silver nitrate followed by warming the solution

(c) Heat the compound strongly

(d) Smell the compound

The question was posed to me at a job interview.

I would like to ask this question from P-Block Elements topic in division P-Block Elements of Chemistry – Class 12

Answer 1

Right answer is (a) Acidify the given compound and add silver nitrate

The explanation is: The standard, universal qualitative test for detecting presence of chloride is carried out by acidifying the solution and then adding silver nitrate. If chloride ions are present, a thick white ppt. is produced.