Chemical Bonding Quiz
Practice quiz on Chemical Bonding (Chemistry). 5 questions.
About This Quiz
Chemical Bonding Quiz — Questions with Solutions
All 25 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.Ionic bond by?
- A.Transfer of electrons
- B.Sharing
- C.Metallic
- D.Van der Waals
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Answer: A. Transfer of electrons
Metal to non-metal.
Q2.Covalent bond involves?
- A.Sharing electrons
- B.Transfer
- C.Metallic
- D.Hydrogen bond
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Answer: A. Sharing electrons
Common in organic.
Q3.NaCl is?
- A.Ionic compound
- B.Covalent
- C.Metallic
- D.Organic
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Answer: A. Ionic compound
Na+ and Cl-.
Q4.Diamond is hard due to?
- A.Strong covalent 3D network
- B.Ionic bonds
- C.Metallic
- D.Weak bonds
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Answer: A. Strong covalent 3D network
Each C bonded to 4.
Q5.H-bond found in?
- A.Water
- B.NaCl
- C.Diamond
- D.Iron
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Answer: A. Water
Between H and O/N/F.
Q6.The chemical bond formed by the transfer of electrons is called:
- A.Ionic bond
- B.Covalent bond
- C.Metallic bond
- D.Hydrogen bond
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Answer: A. Ionic bond
Ionic bonds form when electrons are transferred between atoms.
Q7.The bond formed by sharing of electron pairs is called:
- A.Ionic bond
- B.Covalent bond
- C.Metallic bond
- D.Van der Waals bond
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Answer: B. Covalent bond
Covalent bonds involve sharing of electron pairs.
Q8.NaCl is held together by which type of bond?
- A.Ionic bond
- B.Covalent bond
- C.Metallic bond
- D.Hydrogen bond
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Answer: A. Ionic bond
Sodium chloride is a classic ionic compound.
Q9.The water molecule (H2O) is held together by:
- A.Ionic bond
- B.Covalent bond
- C.Metallic bond
- D.Van der Waals bond
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Answer: B. Covalent bond
Hydrogen and oxygen atoms in water share electrons via covalent bonds.
Q10.How many electrons are shared in a double covalent bond?
- A.2
- B.4
- C.6
- D.8
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Answer: B. 4
A double bond involves two shared electron pairs, i.e. 4 electrons.
Q11.Which theory explains molecular shape based on electron pair repulsion?
- A.VSEPR theory
- B.Octet rule
- C.Aufbau principle
- D.Hund's rule
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Answer: A. VSEPR theory
VSEPR (Valence Shell Electron Pair Repulsion) theory predicts molecular geometry.
Q12.According to the octet rule, atoms tend to have how many electrons in their outer shell?
- A.2
- B.6
- C.8
- D.10
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Answer: C. 8
Most atoms are stable with 8 electrons in the outermost shell.
Q13.Hydrogen bonding is notably strong in which of these substances?
- A.Water
- B.Methane
- C.Benzene
- D.Hydrogen gas
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Answer: A. Water
Water molecules form strong hydrogen bonds due to O-H polarity.
Q14.Metallic bonding is characterized by:
- A.Transfer of electrons
- B.Sharing of electron pairs
- C.A sea of delocalized electrons
- D.No electron involvement
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Answer: C. A sea of delocalized electrons
Metal atoms share a 'sea' of delocalized electrons.
Q15.Which of the following contains a coordinate (dative) bond?
- A.NaCl
- B.Ammonium ion (NH4+)
- C.H2O
- D.CO2
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Answer: B. Ammonium ion (NH4+)
In NH4+, nitrogen donates both electrons of a bonding pair to H+.
Q16.Ionic bonds generally form when the electronegativity difference between atoms is:
- A.Very low
- B.High
- C.Zero
- D.Negative
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Answer: B. High
A large electronegativity difference favours electron transfer and ionic bonding.
Q17.Covalent bonds typically form between:
- A.Metal and metal
- B.Metal and non-metal
- C.Non-metal and non-metal
- D.None of these
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Answer: C. Non-metal and non-metal
Covalent bonding is common between two non-metal atoms.
Q18.Which gas exists as a diatomic molecule joined by a triple covalent bond?
- A.Oxygen
- B.Nitrogen
- C.Hydrogen
- D.Chlorine
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Answer: B. Nitrogen
N2 has a strong triple covalent bond between the two nitrogen atoms.
Q19.The bond angle in a water molecule is approximately:
- A.90 degrees
- B.104.5 degrees
- C.120 degrees
- D.180 degrees
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Answer: B. 104.5 degrees
Water's bent shape has a bond angle of about 104.5 degrees.
Q20.Which of these bond types is generally the weakest?
- A.Ionic bond
- B.Covalent bond
- C.Hydrogen bond
- D.Metallic bond
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Answer: C. Hydrogen bond
Hydrogen bonds are weaker than ionic, covalent, and typical metallic bonds.
Q21.Magnesium oxide (MgO) is formed by:
- A.Sharing of electrons
- B.Transfer of electrons from Mg to O
- C.Transfer of electrons from O to Mg
- D.Metallic bonding only
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Answer: B. Transfer of electrons from Mg to O
Magnesium loses electrons to oxygen, forming an ionic bond.
Q22.The molecular shape of methane (CH4) is:
- A.Linear
- B.Tetrahedral
- C.Trigonal planar
- D.Bent
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Answer: B. Tetrahedral
Methane has a tetrahedral shape due to four bonding pairs around carbon.
Q23.Which compound exhibits both ionic and covalent bonding?
- A.NaCl
- B.Sodium hydroxide (NaOH)
- C.CO2
- D.CH4
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Answer: B. Sodium hydroxide (NaOH)
NaOH has an ionic bond between Na+ and OH-, and a covalent bond within OH-.
Q24.Lewis structures are mainly used to represent:
- A.Atomic mass
- B.Valence electrons and bonding
- C.Isotopes
- D.Radioactivity
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Answer: B. Valence electrons and bonding
Lewis structures show valence electrons and how atoms are bonded.
Q25.The tendency of an atom to attract shared electrons towards itself is called:
- A.Electronegativity
- B.Ionization energy
- C.Electron affinity
- D.Atomic radius
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Answer: A. Electronegativity
Electronegativity measures an atom's pull on shared electrons.
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Chemical Bonding questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.