Search SchoolNGR

Friday, 03 April 2026
Register . Login

A sample of a gas may be identified as chlorine if it turns

A sample of a gas may be identified as chlorine if it turns
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Damp blue litmus paper red
  • B Lime water miky
  • C Lead ethanoate paper black
  • D Starch iodide paper blue-black
Correct Answer: Option D
Explanation:
A test for chlorine is to place damp starch-iodide paper into a test tube of chlorine. A positive result for chlorine is indicated by the paper turning from white to blue-black.

Share question on: