Acids and Alkalis

Question 1

Is the acidity and alkalinity of a substance a chemical or physical property?

Answer 1

Chemical Property

Question 2

What is an indicator?

Answer 2

An indicator is a solution of a dye that changes colour in acidic and alkaline solution.

Question 3

What is pH measured with?

Answer 3

pH probe or universal indicator

Question 4

What is the full form of pH?

Answer 4

Potential of Hydrogen

Question 5

What is universal indicator?

Answer 5

A mixture of dyes that changes colour to show how acidic or alkaline a substance is.

Question 6

How is sulfuric acid useful to us?

Answer 6

• fertilisers
  -inticides
• crops
  -dyes
  -medicines
  -paints
  -medicines

Question 7

True or false: Neutralisation can treat stomach acid

Answer 7

TRUE

Question 8

How to make an acid alkaline?

Answer 8

Add alkali

Question 9

How to make an alkaline acidic?

Answer 9

Add acid

Question 10

How to make acid neutral?

Answer 10

add alkali

Question 11

how to make alkali neutral?

Answer 11

add acid

Question 12

how to make neutral acidic or alkaline

Answer 12

add alkali or acid respectively

Question 13

what is neutralisation?

Answer 13

It is the process in which a type of chemical reaction takes place, where the pH is 7.0