Question

Which of the following materials fall in the category of a “pure substance”?​

Answer 1

Definition :

Pure substance is one of a type of matter which is consist of single type of particles. It is classified as elements and compound.

Example :

Copper, oxygen, iron, hydrogen, mercury,... are in the basis of elements

Water, methane, sugar, salt,... in the basis of compound

Answer 2

Which of the following materials fall in the category of a “pure substance”?

• Tin
• Sulfur
• Diamond
• Water
• Crystal
• Pure sugar (sucrose)
• Table salt (sodium chloride)
• Bking soda (sodium bicarbonate)