MEDIUM
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Write a chemical reaction involve in lime soda process? Explain.

Important Questions on Acids, Bases and Salts

MEDIUM
Write the chemical formulae for Washing-soda and Baking soda and give their uses.
EASY
The chemical formula for plaster of Paris is:
HARD
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?
HARD
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.
MEDIUM
Baking soda is a mixture of:
EASY
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
Explain why Plaster of Paris should be stored in a moisture-proof container.
HARD
Why is Plaster of Paris written as CaSO4. 12H2O? How is it possible to have half a water molecule attached to CaSO4?
HARD
What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved.
HARD
What is bleaching powder? How is bleaching powder prepared? Write chemical equation of the reaction involved in the preparation of bleaching powder.
MEDIUM

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

Give the equation of the reaction involved.

EASY
Write an equation to show the reaction between Plaster of Paris and water
HARD
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
State two important uses of bleaching powder.
MEDIUM
Why is sodium hydrogen carbonate an essential ingredient in antacids?
HARD
How is chloride of lime chemically different from calcium chloride? Why does the former lose its chlorine when kept exposed in air?
HARD
What is the common name of the compound CaOCl2?
MEDIUM
Why should Plaster of Paris be stored in moisture proof containers?
MEDIUM
Plaster of Paris should be stored in a moisture-proof container. Explain why?
HARD
Dry pellets of base 'X' when kept in open absorb moisture and turn sticky. The compound is also formed by chlor-alkali process. Write chemical name and formula of X. Describe chlor-alkali process with a balanced chemical equation. Name the type of reaction that occurs when X is treated with dilute hydrochloric acid. Write the chemical equation. While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?