Advertisements
Advertisements
Question
Phenolphthalein is a synthetic type of indicator.
Options
True
False
Advertisements
Solution
Phenolphthalein is a synthetic type of indicator - True
APPEARS IN
RELATED QUESTIONS
When acids react with metal, which gas is liberated?
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute hydrochloric acid reacts with iron filings.
Complete and balance the following chemical equations:
`Ca(OH)_2 + Cl_2 ->`
What does a soda-acid type fire extinguisher contain? How does it work? Explain the working of a soda-acid fire extinguisher with the help of a labelled diagram.
When _______________ is passed through fresh lime water, it turns milky.
With the help of suitable examples explain the term neutralization and the formation of –
- acidic,
- basic and
- neutral salts
What happens when a solution of an acid is mixed with a solution of a base in a test tube?
- The temperature of the solution increases
- The temperature of the solution decreases
- The temperature of the solution remains the same
- Salt formation takes place
Calcium phosphate is present in tooth enamel. Its nature is
Common salt besides being used in kitchen can also be used as the raw material for making
- washing soda
- bleaching powder
- baking soda
- slaked lime
What happens when nitric acid is added to egg shell?
What are strong and weak acids? In the following list of acids, separate strong acids from weak acids.
Hydrochloric acid, citric acid, acetic acid, nitric acid, formic acid, sulphuric acid.
A sulphate salt of Group 2 element of the Periodic Table is a white, soft substance which can be moulded into different shapes by making its dough. When this compound is left in open for some time, it becomes a solid mass and cannot be used for moulding purposes. Identify the sulphate salt. Why does it show such a behaviour? Give the reaction involved.
Vinegar is ______ in taste.
Solutions of acids conduct ______.
______ change the colour of the indicators.
Which acid is present in milk?
“All acids contain one or more hydrogen atoms, but not all substances containing hydrogen are acids.” Support this statement with examples.
What property do acids and bases have in common? Explain it with an example.
