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Turmeric (curcumine) remain yellow in acidic solutions.
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∙ 8y ago
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What is acid base indicator?
An acid base indicator is a chemical substance that has the ability to change color depending on the pH.
What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
Litmus paper
What chemical should be added to neutralize hydrochloric acid?
Add the correct amount of an Alkali, such as Sodium Hydroxide. Use an indicator to find out when it has been neutralized, such as phenolphthalein (however you spell it) or Universal Indicator.
What is the purpose of the NaNO2 when preparing the Pauly reagent?
In the presence of sodium nitrite and hydrochloric acid, sulfanilc acid form a diazonium salt. This salt react with and is an indicator for thyrosine, histidine.
Why did clothes turn red when stained with turmeric and washed with soap?
It is because the turmeric contains a compound called cucumine.cucumine reacts with the fatty acid in the soap/detergent and thence the color of the combination changes to red.
How will you identify hydrochloric acid you have only turmeric indicator?
it turns red colour
What color when acid is put on turmeric indicator?
it turns yellow
How can you identify hydrochloric acid sodium hydroxide and sugar solution with the help of turmeric indicator?
Hydrochloric acid: yellow color Sodium hydroxide: brown color Sugar: unchanged
What is the color of the indicator when an excess of hydrochloric acid has been added?
Red
What color would hydrochloric acid pH 1 turn universal indicator?
Red
How do you distinguish hydrochloric acid and ethanoic acid by using an indicator?
drink it
What is the reaction of turmeric with hydrochloric acid?
If it is adulterated a black colour will be formed :D
What colour indicator do you use for hydrochloric acid and vinegar?
Methyl red is an adequate indicator.
How can hydrochloric acid turn red in color?
Universal Indicator turns concentrated HCl red because Universal Indicator turns strong acids reds.
What is the color of citric acid in turmeric?
The colour is red
What is the colour with universal indicator hydrochloric acid in stomach?
it would turn green with a hint of blue.
What will an indicator do in the presence of an acid or base?
This indicator changes his color.
