Chemistry

Question 1

What is the pH scale

Answer 1

The pH scale tells us how acidic or alkaline a solution is

Question 2

If a substance is neutral what is the pH

Answer 2

pH 7

Question 3

If a substance has a ph less than 7 what is it

Answer 3

It’s an acid

Question 4

What ions do they produce

Answer 4

They produce hydrogen ions

Question 5

What is a base

Answer 5

A base is a substance that reacts with an acid to produce salt and water

Question 6

Name a type of base and it’s feature

Answer 6

An alkali is a base soluble in water

Question 7

If a substance has a pH more than 7 what is it

Answer 7

It’s an alkali

Question 8

What ions do alkali form

Answer 8

Hydroxide ions

Question 9

Tell me about litmus indicator

Answer 9

It shows red in acidic solution,purple in neutral solutions and blue in alkali solution(only good for acids)

Question 10

Tell me about methyl orange indicator

Answer 10

It is red in acidic solutions and yellow for neutral and alkali solution

Question 11

Tell me about the phenolphthalein

Answer 11

Colourless in acids or neutral and pink in alkaline solutions