How is plaster of Paris prepared?

Important Questions on Acids, Bases And Salts

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 2

Write two observations you would make when quicklime is added to water.

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 3

A calcium compound, which is a yellowish-white powder, is used as a disinfectant and also in textile industry. Name the compound. Which gas is released when this compound is left exposed to air?

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 4

How is plaster of Paris chemically different from gypsum? How can they be inter converted? Write one use of plaster of Paris.

EASY

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 5

What is baking powder?

EASY

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 6

What is meant by water of crystallisation?

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 7

Write the name and formula of a compound used for disinfecting drinking water.

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 8

Name the three products obtained on the electrolysis of an aqueous solution of sodium chloride. Why this process is called chlor-alkali process?

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2C>Q 9

Name the products formed when sodium hydrogen carbonate is heated. Write a chemical equation for the above reaction.