MEDIUM
10th ICSE
IMPORTANT
Earn 100

What are indicators? Give examples of two natural and two artificial indicators.

Important Questions on Acids, Bases and Salts

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 2
To a solution of hydrochloric acid, 3drops of methyl orange are added. What will be the change in the colour of the solution? Why?
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 3
While performing an experiment, a student added a few drops of an indicator to the sodium hydroxide solution. The solution immediately becomes pink. Which Indicator is used by the student? Explain giving reason.
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 4
If you are provided with three beakers, Beaker A contains distilled water, Beaker B contains a basic solution and Beaker C contains an acidic solution. How will you identify the contents of each beaker if you have only blue litmus paper? 
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 1
Show that non-metallic oxides are acidic in nature with the help of a reaction. 
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 2
The marble statues are often slowly corroded when kept open for a long time. Give suitable reason. 
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 4
List two differences between acids and bases on the basis of chemical properties.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 6

 Write balanced chemical equations for the following reaction:

Dilute sulphuric acid reacts with aluminium powder.

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>Practice Questions>Q 6

Write balanced chemical equations for the following reaction:

Dilute hydrochloric acid reacts with sodium carbonate.