MEDIUM
10th ICSE
IMPORTANT
Earn 100

How is chloride of lime chemically different from calcium chloride? Why does chloride of lime gradually lose its chlorine when exposed to the air?

Important Questions on Acids, Bases and Salts

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 27

State the chemical property in each case on which the following uses of baking soda are based:

As an antacid

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 27

State the chemical property in each case on which the following uses of baking soda are based:

As a constituent of baking powder

HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 28
How is plaster of Paris obtained? What reactions are involved in the setting of plaster of Paris?
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 29
Draw a flow chart showing uses of products from chlor-alkali process.
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 30
A sanitary worker uses a white chemical, having a strong smell of chlorine gas to disinfect the water tank. Identify the chemical compound. Write its chemical formula and give the chemical equation for its preparation?
HARD
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 31
A gas is produced when conc.H2SO4 is added to a solid sodium chloride tank in a test tube. The gas coming out through the delivery tube is passed over a dry blue litmus paper and then over a moist blue litmus paper. What do you observe? Explain reason with the help of a chemical equation.
MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 32

Give reason why tarnished copper vessel begins to shine again when rubbed with lemon.

MEDIUM
10th ICSE
IMPORTANT
Science Chemistry>Chapter 2 - Acids, Bases and Salts>ASSESSMENT>Q 32

Give a reason why all alkalis are bases, but all bases are not alkalis.