HARD
10th CBSE
IMPORTANT
Earn 100

Name a sodium compound used for softening hard water.

Important Questions on Acids, Bases And Salts

MEDIUM
10th CBSE
IMPORTANT
What happens when bleaching powder is exposed to air?
HARD
10th CBSE
IMPORTANT
What is gypsum? What happens when gypsum is heated to 373K?
MEDIUM
10th CBSE
IMPORTANT
Give two uses of bleaching powder.
EASY
10th CBSE
IMPORTANT
Name the compound which is used for setting fractured bones. Write its chemical name and formula. 
HARD
10th CBSE
IMPORTANT
Write an equation to show the reaction between plaster of Paris and water.
MEDIUM
10th CBSE
IMPORTANT
What is a neutralisation reaction? Give one example. 
MEDIUM
10th CBSE
IMPORTANT
How does the pH of an acid solution change when it is diluted?
MEDIUM
10th CBSE
IMPORTANT
Will the solution of sodium carbonate acidic or basic?