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What is the indicator and color change for a positive test for glucose?
Benedict solution is the chemical indicator for simple sugars.
What color change does starch indicator solution make in the absence of starch?
Starch indicator solution will remain its original color (usually colorless) in the absence of starch. Without starch present, there will be no color change observed when using starch indicator solution.
What is the solution of NaOH in methyl orange indicator?
The solution of NaOH in methyl orange indicator will turn from yellow to red. Methyl orange is an acid-base indicator that changes color in response to a change in pH. In the presence of a strong base like NaOH, the indicator will change to a red color indicating the basic nature of the solution.
What is a pH indicators?
A pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or alkalinity) of the solution can be determined easily. Normally, the indicator causes the colour of the solution to change depending on the pH.
What colour does universe indicator with antacid solution?
The universe as a whole does not have a specific colour. However, in a science experiment, when an antacid solution is added to a universal indicator, it may change colour based on the pH level of the solution. This change in colour signifies the acidity or alkalinity of the solution.
What is the indicator and color change for a positive test for glucose?
Benedict solution is the chemical indicator for simple sugars.
What color change does starch indicator solution make in the absence of starch?
Starch indicator solution will remain its original color (usually colorless) in the absence of starch. Without starch present, there will be no color change observed when using starch indicator solution.
What is the solution of NaOH in methyl orange indicator?
The solution of NaOH in methyl orange indicator will turn from yellow to red. Methyl orange is an acid-base indicator that changes color in response to a change in pH. In the presence of a strong base like NaOH, the indicator will change to a red color indicating the basic nature of the solution.
When performing a Hemoccult test which color is positive indicator of blood?
In a Hemoccult test, a positive indicator of blood is shown by a blue color change on the test card. This occurs when the sample contains hemoglobin, which reacts with the developer solution. It's important to follow the manufacturer's instructions for accurate interpretation of results.
Is an indicator's reaction in acids and bases a chemical change?
No, an indicator's reaction in acids and bases is a physical change. Indicators change color based on the pH of the solution they are in, but the chemical composition of the indicator remains the same.
How is the pH of a solution is measured using universal indicator?
The pH of a solution is measured using universal indicator by adding a few drops of the indicator to the solution and observing the color change. The color of the solution corresponds to the pH level on the universal indicator color scale, which ranges from red (acidic) to purple (neutral) to blue (basic).
How do you find the pH of an indicator?
Put a drop of universal indicator solution and observe the color change. Look online for the table.
How do antacids effect a pH indicator?
Antacids work by neutralizing stomach acid, which can change the pH level of the stomach. If an antacid is added to a solution containing a pH indicator, it can affect the color change of the indicator by altering the acidity or basicity of the solution.
What color when acid is put on china rose indicator?
When acid is put on china rose indicator, the indicator will turn red in color. This color change indicates that the solution is acidic. China rose indicator contains anthocyanin pigments that change color based on the pH of the solution.
What is universal indicator state the purpose for which this indicator is used?
Universal indicator is a mixture of dyes that changes color in response to different pH levels. It is used to determine the approximate pH of a solution by observing the color change of the indicator when added to the solution.
How does bicarbonate indicator works?
Bicarbonate indicator works by changing color in response to the pH level of a solution. When added to a solution, the indicator changes color based on the amount of bicarbonate ions present, which can give an indication of the solution's pH level. This color change is due to the property of the indicator molecule to shift its absorbance spectrum based on the pH of the solution.
What is the process for determining the pH of a solution using pH indicator paper, and what role does a pH indicator paper play in this process?
To determine the pH of a solution using pH indicator paper, you first dip the paper into the solution. The paper will change color based on the acidity or alkalinity of the solution. The pH indicator paper plays a crucial role in this process by providing a visual indication of the pH level through the color change, allowing you to determine the acidity or alkalinity of the solution.
