pink
colourless
red
dark blue
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Sorry to say 'this your answer is not correct'.During d test for chlorine using damp starch-iodide paper,the colour change is dark-blue.This is so because chlorine being more reactive than iodine liberates iodine from starch-iodide,the iodine which was liberated by chlorine react with the starch to give a dark-blue colouration...so the correct answer is option D (dark-blue)
Option D is d correct answer as chlorine attacks the iodide ion to give the blue black color
Chlorine turns moist starch iodide paper blue-black because the iodide ions on the paper are oxidised to iodine and the starch react to it to give blue-black compound.
Chlorine turns moist starch iodide paper blue-black because the iodide ions on the paper are oxidised to iodine and the starch react to it to give blue-black compound
D ans is colourless cos starch iodide paper is already dark blue nd it turns colourless cos chlorine displace iodine nd bleaches d starch iodide paper
