Indicator is what type of compound

Hydrogen peroxide can act as either an oxidizing agent or a reducing agent, depending on the species present in solution. Write balanced half-reaction equations for each of the following: a H2O2 aq acting as an oxidizing agent. I put 2 and tried -2 but it didn't seem right. The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent.

Any help would be greatly appreciated! Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red.

In the reactions in which they participate, they are reduced to A-, B-, and C-. Doubtnut is not responsible for any discrepancies concerning the duplicity of content over those questions. Study Materials. Why use Doubtnut? Instant Video Solutions. Request OTP. Question : An indicator is what type of compound? Related Answer. Types of electrolyte pH calculation of strong acid and base Mixture of strong acids and bases For weak acid strong base titration the indicator used is :.

The graph represents the titration curve for : a. Did you know that the color of hydrangea flowers depends on the pH of the soil in which they are grown?

Indicators are organic weak acids or bases with complicated structures. This is a very important formula, and its derivation is very simple. Start from the definition of the equilibrium constant K ; you can easily derive it. In other words, when the pH is the same as p K ai , there are equal amounts of acid and base forms. When the two forms have equal concentration, the color change is most noticeable.

Colors of substances make the world a wonderful place. Because of the colors and structures, flowers, plants, animals, and minerals show their unique characters. Many indicators are extracted from plants. For example, red cabbage juice and tea pigments show different colors when the pH is different. The color of tea darkens in a basic solution, but the color becomes lighter when lemon juice is added. Red cabbage juice turns blue in a basic solution, but it shows a distinct red color in an acidic solution.

Find an indicator for the titration of a 0. First, you should estimate the pH at the equivalence point, at which the solution is 0. This is a hydrolysis problem, but the following method employs the general principle of equilibrium. Phenolphthalein in the table above has a p K ai value of 9.