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प्रश्न
Turmeric and litmus are ______ acid-base indicators.
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उत्तर
Turmeric and litmus are natural acid-base indicators.
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संबंधित प्रश्न
A milkman adds a very small amount of baking soda to fresh milk. Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
What is an indicator?
What is an olfactory indicator?
What colour will the universal indicator show if you add it to the following substance?
Potassium hydroxide, pH = 12
Fresh milk has a pH of 6. When it changes into curd (yogurt), will its pH value increase or decrease? Why?
Under what soil conditions do you think a farmer would treat the soil of his fields with quicklime (calcium oxide), or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?
What do you think will be the pH of an antacid solution?
Less than 7 or more than 7.
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
- What will be the action of solution A on litmus?
- What will be action of solution B on litmus?
- Name any two substances which can give solutions like A.
- Name any two substances which can give solutions like В.
- What sort of reaction takes place when solution A reacts with solution В?
How will you prepare natural indicator from turmeric powder?
Name the acid present in vinegar.
