Advertisements
Advertisements
प्रश्न
‘Litmus’, a natural dye is an extract of which of the following?
विकल्प
China rose (Gudhal)
Beetroot
Lichen
Blue berries (Jamun)
Advertisements
उत्तर
Lichen
Explanation:
Litmus, a natural dye used as an indicator is extracted from lichen.
APPEARS IN
संबंधित प्रश्न
Explain why An antacid tablet is taken when you suffer from acidity.
Explain why Calamine solution is applied on the skin when an ant bites.
Explain why factory waste is neutralised before disposing it into the water bodies.
What is a neutralization reaction?
State whether the following statement is true or false. Correct the false statement.
Common salt dissolved in water turns blue litmus red.
State whether the following statement is true or false. Correct the false statement.
Calamine can be used to treat ant’s sting.
You are provided with three test tubes A, B and C as shown in figure with different liquids. What will you observe when you put
- a piece of blue litmus paper in each test tube.
- a piece of red litmus paper in each test tube.
- a few drops of phenolphthalein solution to each test tube.
Explain two neutralisation reactions related to daily life situation.
When an acid reacts with a base, a neutralization reaction takes place to give salt and water.
How do treat effluents from the industries?
