Question : A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
Option 1: From brown to blue-black
Option 2: From brown to orange-red
Option 3: From blue to pink
Option 4: From pink to blue-green
New: SSC MTS 2024 Application Form OUT; Direct Link
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: From brown to blue-black
Solution : The correct option is From brown to blue-black.
Potatoes include starch, a type of carbohydrate made up of amylose and amylopectin. Iodine and starch combine to give potatoes their characteristic blue-black colour. The iodine molecules react with the amylose and absorb it into its branches, giving the material a rich blue hue.
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Question : Directions: If White is called Blue, Blue is called Red, Red is called Yellow, Yellow is called Green, Green is called Black, Black is called Violet, and Violet is called Orange, then what would be the colour of human blood?
Question : When the litmus solution is neither acidic nor basic, its colour is_____.
Question : The colour of the alluvial soil varies from _______.
Question : Which of the following is not a stem modification?
Question : Starch in potatoes reacts with _____, turning to a blue colour.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile