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When an Elodea leaf is added to a phenol red solution, the leaf will release oxygen through photosynthesis. The oxygen will cause the phenol red solution to change color, indicating the presence of oxygen production.

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1y ago

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What happens when water is added to phenol?

tribromophenol is formed.


What will happen to the color of sodium bicarbonate if phenol red is add?

If phenol red is added to sodium bicarbonate, the color of the solution will change based on the pH. In an acidic solution, phenol red will appear yellow, in a neutral solution it will be red, and in an alkaline solution (such as when sodium bicarbonate is added), it will turn a pink or magenta color.


What happened when impurity is added in phenol water system?

the critical solution temperature for phenol water system increases


Why Hcl is added in estimation of phenol?

Hydrochloric acid (HCl) is added to the solution during the estimation of phenol to convert phenol into its corresponding chloride salt, which is easier to separate and quantify. This reaction helps in the extraction and analysis of phenol from the sample.


What happens when bromine water is added to phenol?

tribromophenol is formed.


What happens when you add phenol red indicator to calcium chloride?

When phenol red indicator is added to calcium chloride, there won't be any specific chemical reaction between the two. Phenol red is commonly used as a pH indicator, changing color based on the acidity or alkalinity of a solution. However, since calcium chloride does not significantly affect the pH of a solution, the color of phenol red may not change in this case.


What happens when a solute is added to an unsaturated solution?

It will dissolve in the solution.


What happens when barium nitrate solution is added to zinc sulphate solution?

Sh!t happens.


What the importance of adding sodium carbonate in phenol content determination?

Sodium carbonate is added in phenol content determination to help neutralize the acidic phenol solution, making it less acidic. This step allows for accurate measurement of phenol content by stabilizing the pH level of the solution. Additionally, sodium carbonate helps in the formation of a colored complex with phenol, which can be easily measured and quantified.


Does phenol red change baking soda to red?

Phenol red is a pH indicator that changes color in response to pH changes. It turns yellow in acidic conditions and red in basic conditions. When added to a solution containing baking soda (sodium bicarbonate), which is a basic substance, phenol red can turn red.


What happens when a crystal of solute is added to a unsaturated solution?

It will dissolve


What happens when phenol is warmed with CCl4 in aqueous NaOH?

In the presence of aqueous NaOH, phenol undergoes nucleophilic aromatic substitution reaction to form sodium phenoxide. When CCl4 is added, no reaction occurs as CCl4 is non-reactive towards phenoxide ion.