Questions


October 2022 1 3 Report
1. Which of the following is the simplest form of substance? *

A. Chemical Formula
B. Compound
C. Element
D. Mixture

2. Which of the following is NOT an example of compounds? *

Ammonia
Helium gas
Hydrogen peroxide
Table sugar

3. Which of the following statement is TRUE about elements and compounds? *

Are homogeneous in nature.
Are simplest form of matter.
Are commonly naturally occurring materials.
Can be broken down into simpler substance.

4. Which of the following substance is an element? *

Carbon dioxide
Iron
Salt
Sugar

5. Which of the following describes an element? *

The simplest substance.
It can be broken down into other types of substance.
It can be separated through a chemical process.
It is composed of two or more types of atoms.

6. Which of the following statements correctly describe a compound ? *

Can be broken down into simpler type of matter by chemical means.
Has a unique property that are different from the properties of its individual elements.
Composed of atoms of two or more elements that bond together.
Composed of two atoms that bond together.

7. Which of the following is the result of compound if hydrogen gas and oxygen gas combine? *

Alcohol
Salt
Sugar
Water

8. Salt is made up of what elements? *

Sodium and chloride
Sodium and cholrine
Sodium and copper
Sodium and oxide

9. Which of the following is correctly matched? *

Gold: Element: Silver: Compound
Oxygen: Element: Water: Compound
Sugar: Element: Salt: Compound
Water: Element: Hydrogen: Compound

10. Which of the following is not an element? *

Na
Fe
Pz
He

(Paki answer pls i will mark brainly if u answer correctly)

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