EASY
Earn 100

What is the use of calcium sulphate?

Important Questions on Acids, Bases and Salts

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Write the chemical formulae for Washing-soda and Baking soda and give their uses.
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Why should a magnesium ribbon be cleaned before burning in air?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Why should a magnesium ribbon be cleaned before burning in the air?
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
How is washing soda prepared from sodium carbonate? Give its chemical equation. State the type of this salt. Name the type of hardness of water which can be removed by it?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Baking soda is a mixture of:
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
How is sodium hydroxide manufactured in industries? Name the process. In this process, a gas X is formed as a by-product. This gas reacts with lime water to give a compound Y, which is used as a bleaching agent in the chemical industry. Identify X and Y and write the chemical equation of the reaction involved.
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
The chemical formula for plaster of Paris is:
EASY
Science>Chemistry>Acids, Bases and Salts>Salts
The pH of a salt used to make tasty and crispy pakoras is 14. Identify the salt and write a chemical equation for its formation. List its two uses. 
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Explain why Plaster of Paris should be stored in a moisture-proof container.
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
Why is Plaster of Paris written as CaSO4. 12H2O? How is it possible to have half a water molecule attached to CaSO4?
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
State two important uses of bleaching powder.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Why is sodium hydrogen carbonate an essential ingredient in antacids?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
How is Plaster of Paris prepared? Write chemical equation of the reaction involved.
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
Name the substance which on treatment with chlorine yields bleaching powder.
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
What is bleaching powder? How is bleaching powder prepared? Write chemical equation of the reaction involved in the preparation of bleaching powder.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts

What will happen if a solution of sodium hydrogen carbonate is heated?

Give the equation of the reaction involved.

EASY
Science>Chemistry>Acids, Bases and Salts>Salts
Write an equation to show the reaction between Plaster of Paris and water
HARD
Science>Chemistry>Acids, Bases and Salts>Salts
Write the chemical name of Na2CO3.10H2O and Na2CO3. Write the significance of 10H2O. Mention the term used for water molecules attached with salt. With the help of chemical equation explain the method of preparation of both Na2CO3.10H2O and Na2CO3. Also, list two uses of Na2CO3.10H2O.
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Salts
Why should Plaster of Paris be stored in moisture proof containers?