Turmeric contains curcumin, a chemical that turns red with bases and yellow with acids in water.

Turmeric indicator turns into red color when it is added to a base. And there is no change in the color of indicator when it is added to acid as well as neutral solutions. The other liquid is Sugar solution.

yellow

curcumin has a red color in alkaline condition. after adding HCL, its color revers to yellow, but then adding NaoH, it doesnot red color.

Turmeric compound is a naturally ocuring yellow colour compound. It is an acid -base indicator, termeric compound remines yellow when acid or nutral solutions are added to it. When basic solutions such as sodium hydroxide is added to it, the solution turns to pinkish red.

There is no effect on turmeric solution by sugar solution.

Turmeric is yellow in colour. When a base is added to it, the solution turns into pink colour. However turmeric remains yellow when an acid or neutral solution is added to it. If the colour does not change, it means the solution added is acidic (HCl).

Answer: b) when a drop of hydrochloric acid is added to China rose indicator it will change into dark pink or magenta colour which shows that the solution is acidic. e)when a drop of dilute sulphuric acid is added to red cabbage juice it turns into pink colour which shows that the solution is acidic.

Dilute acids contain a large amount of water. A concentrated acid can be diluted with the addition of water. Inorganic acids like hydrochloric acid, nitric acid and sulphuric acid are strong acids. Acids that release a few hydrogen ions in water are weak acids.

Dilute hydrochloric acid turn blue litmus red since the presence of acids change the color of blue litmus. EXPLANATION: Methyl orange indicator turns reddish pink because of the action of dilute HCl. Methyl orange turn pink coloured in acidic solutions and yellow coloured in basic solutions.

blue litmus

The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria.

For example, don’t store muriatic acid (hydrochloric acid) with peroxide. Avoid storing household bleach together with peroxide and acetone.

Stomach, or gastric, acid is a digestive fluid containing hydrochloric acid (HCL) and digestive enzymes….Foods that naturally contain probiotics include:

• yogurt.
• cottage cheese.
• kefir.
• sauerkraut.
• kimchi.
• tempeh.
• kombucha.
• miso.

Concentrated hydrochloric acid (HCl) is the most frequently used halogen acid for the dissolution of geologic samples. Unlike HNO3, HCl is a weak reducing acid and is not generally used to digest organic materials. It is an excellent solvent for carbonates, phosphates, many metal oxides, and metals.

When vinegar is mixed with salt, the acetic acid in the vinegar reacts with the sodium chloride or salt to produce sodium acetate and hydrochloric acid. The hydrochloric acid is a strong acid.

Hydrochloric acid is a hazardous liquid which must be used with care. The acid itself is corrosive, and concentrated forms release acidic mists that are also dangerous. If the acid or mist come into contact with the skin, eyes, or internal organs, the damage can be irreversible or even fatal in severe cases.