Chemical Compounds: Definition, Examples and Properties Quiz

Question 1

Which element is essential in the definition of a chemical compound?

Accepted Answer

Chemical Bond

Answer

Mechanical Combination

Answer

Electrical Attraction

Answer

Physical Mixture

Question 2

Which of the following is the chemical formula for water?

Accepted Answer

H2O

Answer

H3O

Answer

H2O2

Answer

HO

Question 3

What does a molecular formula represent?

Accepted Answer

Number of elements present in a compound

Answer

Color of the molecule

Answer

Structure of atoms

Answer

Melting point of compound

Question 4

What is the molecular formula of glucose?

Accepted Answer

C6H12O6

Answer

C6H10O6

Answer

C7H14O7

Answer

C5H10O5

Question 5

What does an empirical formula tell us?

Accepted Answer

Simplest ratio of number of atoms

Answer

Shape of molecule

Answer

Density of molecule

Answer

Exact number of atoms

Question 6

What is the molecular formula of hexane?

Accepted Answer

C6H14

Answer

C3H7

Answer

C5H12

Answer

C7H16

Question 7

What is the main purpose of a structural formula?

Accepted Answer

Show arrangement and bonding of atoms

Answer

Tell the weight of compound

Answer

Tell the cost of compound

Answer

Show the color of compound

Question 8

What is the chemical formula of acetic acid?

Accepted Answer

CH3COOH

Answer

CH3COO

Answer

CH4O2

Answer

C2H6O

Question 9

What is the chemical formula of common salt (sodium chloride)?

Accepted Answer

NaCl

Answer

NaClO

Answer

Na2Cl

Answer

NaCl2

Question 10

What is the chemical formula of hydrogen peroxide?

Accepted Answer

H2O2

Answer

H3O2

Answer

H2O

Answer

HO2

Chemical Compounds: Definition, Examples and Properties

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