while using the iodine solution some drops fell on my socks and some on the teachers sari nothing happened to the socks but why did the sari became bluish black
Kindly refer a similar query in the link below:
https://www.meritnation.com/ask-answer/question/in-the-science-lab-students-and-teacher-of-class-vi-went-to/components-of-food/5248449
https://www.meritnation.com/ask-answer/question/in-the-science-lab-students-and-teacher-of-class-vi-went-to/components-of-food/5248449