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Chemical Bonding and Tests Quiz

Authored by Prem Shop

Philosophy

12th Grade

Chemical Bonding and Tests Quiz
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sodium fluoride (NaF) is a compound where sodium donates an electron to fluorine, creating a strong bond. Based on the ΔEN value, which is above 1.7, what type of bond is formed?

Polar covalent bond

Non-polar covalent bond

Ionic bond

Metallic bond

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Carbon dioxide (CO₂) is a compound formed when carbon reacts with oxygen. In this molecule, carbon is double-bonded to each oxygen atom to satisfy the octet rule. Which of the following Lewis structures correctly represents this bonding?

O=C=O

O-C=O

C=O=O

O=C-C

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The water (H₂O) molecule has two hydrogen atoms bonded to a central oxygen atom, with two lone pairs of electrons on the oxygen. According to VSEPR theory, what is the molecular geometry of water?

Linear

Bent

Trigonal planar

Tetrahedral

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ammonia (NH₃) is a compound with a nitrogen atom bonded to three hydrogen atoms. Nitrogen also has a lone pair of electrons, influencing the molecule's three-dimensional shape. According to VSEPR theory, what is the molecular geometry of ammonia?

Linear

Trigonal planar

Trigonal pyramidal

Tetrahedral

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Boron trifluoride (BF₃) is a molecule where the central boron atom is bonded to three fluorine atoms. This molecule has no lone pairs on the boron atom. According to VSEPR theory, what is the molecular geometry of BF₃?

Trigonal planar

Trigonal pyramidal

Tetrahedral

Bent

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nitrogen (N₂) gas makes up most of the Earth's atmosphere and is essential for life. In a nitrogen molecule, the two nitrogen atoms are triple-bonded to achieve stability. Which Lewis structure correctly represents a nitrogen molecule?

N≡N

N=N

N-N

N≡O

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phosphorus trichloride (PCl₃) has a central phosphorus atom bonded to three chlorine atoms. In the Lewis structure of PCl₃, how many lone pairs of electrons are present on the phosphorus atom?

0

1

2

3

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