EASY
10th Karnataka Board
IMPORTANT
Earn 100

Name the acid present in the stinging hair of nettle leaves.

Important Questions on Acids, Bases and Salts
HARD
10th Karnataka Board
IMPORTANT
There is no change in the colour of red litmus and blue litmus paper when introduced into an aqueous solution of sodium chloride. After passing direct current through the same solution, red litmus changes to blue colour. Which product is responsible for this change ? Mention any two uses of this product.

MEDIUM
10th Karnataka Board
IMPORTANT
Write the molecular formulae and two uses of bleaching powder.

MEDIUM
10th Karnataka Board
IMPORTANT
Write the molecular formulae and two uses of plaster of Paris.

HARD
10th Karnataka Board
IMPORTANT
What is a strong acid? Explain how tooth decay is caused. How can it be prevented?
