Chemistry · The chemistry involved in the titrimetric exercises: acids, bases and the use of indicators, oxalic-acid vs KMnO4, Mohr's salt vs KMnO4
Starch can be used as an indicator for the detection of traces of?
Starch can be used as an indicator for the detection of traces of?
- A. Glucose in aqueous solution
- B. Protein in blood
- C. lodine in aqueous solution
- D. Urea in blood
Step-by-step solution
Starch reacts with iodine (specifically triiodide ions, I3−) to form a deep blue-black complex. This reaction is highly sensitive and specific, making starch a common indicator for detecting iodine in aqueous solutions, especially in iodometric titrations. Glucose, protein, and urea do not produce such a color change with starch.
Related MCQs
- The indicator used in iodometric titrations is…
- In the titration of ferrous ammonium sulphate and potassium dichromate, the external indicator used is:…
- Mohr salt, _{2} \cdot \boldsymbol{S} \boldsymbol{O}_{4} \) is preferred over for standardization of solution because:…
- solution of sodium carbonate is titrated with solution of sulphuric acid. The best indicator to be used for this titration is:…
- Select correct statement(s): This question has multiple correct options…