Chemical Bonds Practice Questions
SPM (Malaysia) · SPM Chemistry · 138 free MCQs with instant results and detailed explanations.
138
Total
35
Easy
72
Medium
31
Hard
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Sample Questions from Chemical Bonds
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
Which type of bond is formed when electrons are shared between two non-metal atoms?
A.
Ionic bond
B.
Covalent bond
C.
Metallic bond
D.
Hydrogen bond
Show Answer & Explanation
Correct Answer: B
A covalent bond involves the sharing of electrons between non-metal atoms, allowing them to achieve stability.
Q2
Easy
What is the bond angle in a water molecule (H2O) due to its bent shape?
A.
104.5 degrees
B.
120 degrees
C.
180 degrees
D.
90 degrees
Show Answer & Explanation
Correct Answer: A
In a water molecule, the bond angle is approximately 104.5 degrees due to the repulsion between the two lone pairs of electrons.
Q3
Easy
Which of the following compounds contains an ionic bond?
A.
CH4
B.
NaCl
C.
CO2
D.
O2
Show Answer & Explanation
Correct Answer: B
NaCl is formed by the transfer of electrons from sodium to chlorine, resulting in an ionic bond due to the electrostatic attraction between oppositely charged ions.
Q4
Medium
Which of the following compounds is expected to have the highest melting point based on bond types?
A.
NaCl
B.
CH4
C.
H2O
D.
O2
Show Answer & Explanation
Correct Answer: A
NaCl has a strong ionic bond resulting in a high melting point, whereas the others have weaker covalent or Van der Waals interactions.
Q5
Medium
What is the primary reason for the formation of ionic bonds?
A.
Electron sharing
B.
Electron transfer
C.
Hydrogen bonding
D.
Induced dipole interactions
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Correct Answer: B
Ionic bonds form when electrons are transferred from one atom to another, leading to the creation of charged ions that attract each other.
Q6
Medium
Which of the following statements about metallic bonds is NOT true?
A.
They conduct electricity.
B.
They are formed by the sharing of electrons.
C.
They allow metal ions to move freely.
D.
They result in malleability and ductility.
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Correct Answer: B
Metallic bonds are characterized by the delocalization of electrons, not by sharing, which differentiates them from covalent bonds.
Q7
Medium
In which situation would you expect a covalent bond to be stronger?
A.
Between atoms with similar electronegativities
B.
Between a metal and a non-metal
C.
With large atomic radii
D.
In ionic compounds
Show Answer & Explanation
Correct Answer: A
Covalent bonds are typically stronger when formed between atoms with similar electronegativities, as they can share electrons more equally.
Q8
Hard
Which of the following statements correctly describes the bond type formed between sodium and chlorine in sodium chloride (NaCl)?
A.
It is a covalent bond formed by sharing electrons.
B.
It is an ionic bond formed by the transfer of electrons.
C.
It is a metallic bond characterized by a sea of electrons.
D.
It is a hydrogen bond formed by partial positive and negative charges.
Show Answer & Explanation
Correct Answer: B
Sodium chloride (NaCl) is formed through the transfer of an electron from sodium to chlorine, resulting in an ionic bond. Sodium becomes positively charged (Na+) and chlorine becomes negatively charged (Cl-), leading to electrostatic attraction.
Q9
Hard
In terms of bond angles, which molecule has the smallest bond angle due to its geometry?
A.
Methane (CH4)
B.
Water (H2O)
C.
Carbon dioxide (CO2)
D.
Ammonia (NH3)
Show Answer & Explanation
Correct Answer: B
Water (H2O) has a bent molecular geometry with a bond angle of approximately 104.5 degrees. This angle is smaller than that of methane (109.5°), ammonia (107°), and carbon dioxide (180°), resulting from the repulsion between lone pairs of electrons.
Q10
Hard
Which of the following correctly describes the nature of the bond formed between sodium and chlorine in sodium chloride?
A.
Ionic bond where electrons are shared equally.
B.
Ionic bond where one atom donates an electron to another.
C.
Covalent bond where electrons are shared unequally.
D.
Metallic bond involving delocalized electrons.
Show Answer & Explanation
Correct Answer: B
The bond in sodium chloride is an ionic bond formed when sodium donates an electron to chlorine, leading to the formation of Na+ and Cl- ions.
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Chemical Bonds — SPM (Malaysia) SPM Chemistry Practice Questions Online
This page contains 138 practice MCQs for the chapter Chemical Bonds in SPM (Malaysia) SPM Chemistry. The questions are organized by difficulty — 35 easy, 72 medium, 31 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit.