Advertisements
Advertisements
प्रश्न
Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed
विकल्प
Yellow in both acid and base.
Yellow in acid and red in base.
Pink in acid and yellow in base.
Red in acid and blue in base.
Advertisements
उत्तर
Yellow in acid and red in base
Explanation:
Turmeric paste is yellow in colour. So it remains yellow in acid and changes its colour to red in base.
APPEARS IN
संबंधित प्रश्न
Name the acid-base indicator extracted from lichen.
Name a sodium compound which is a constituent of many dry soap powders.
What type of ions are formed?
When a base (or alkali) is dissolved in water.
What is the difference between an alkali and a metal hydroxide?
Write balanced equation to satisfy the following statement:
\[\ce{Acid + sulphide -> Salt + Hydrogen sulphide}\]
Give the name and formula of two : Volatile acids
Complete the following table and write one equation for each to justify the statement:
|
Reactants |
Products |
Method |
|
Soluble base + Acid (dil) |
Salt + water |
Neutralisation Titration |
|
Metal + Non-metal |
Salt (soluble/insoluble) |
______ |
|
Insoluble base + ______ |
Salt (soluble) + water |
______ |
|
Active metal + Acid (dil) |
______ + ______ |
______ |
|
Soluble salt solution (A) + Soluble salt solution (B) |
Precipitated salt + Soluble salt |
______ |
|
Carbonate/bicarbonate + Acid (dil) |
Salt + ______ + ______ |
Decomposition of carbonate |
|
Chlorides/nitrates + Acid (conc.) |
______ + ______ |
Decomposition of chlorides and nitrates |
Which of the following is acidic in nature?
______ contain one or more replaceable hydrogen atoms.
Which one of the following will not produce acid with water?
