ICSE Class 10 Chemical Bonding — Mock Test (2027)
Free online mock test for Chemical Bonding (ICSE Class 10 Chemistry) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Chemical Bonding chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Electrovalent compounds typically exhibit which of the following characteristics regarding their melting points?
- A.High melting points
- B.Low melting points
- C.No definite melting points
- D.Melting points close to room temperature
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2.Which of the following correctly describes the self-ionization of water and the formation of hydronium and hydroxyl ions?
- A.Water molecules dissociate into hydrogen and oxygen gas, forming hydronium and hydroxyl ions as intermediates.
- B.One water molecule donates a proton to another, forming a hydronium ion (H₃O⁺) and a hydroxyl ion (OH⁻) in a reversible reaction.
- C.Water splits into H⁺ and OH⁻ ions directly, with no interaction between water molecules.
- D.Hydronium ions (H₃O⁺) and hydroxyl ions (OH⁻) combine to form water, releasing energy in the process.
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3.Which of the following best explains why hydrogen chloride (HCl) is termed as a polar covalent compound?
- A.Hydrogen and chlorine share electrons equally, resulting in no charge separation.
- B.Chlorine is more electronegative than hydrogen, causing a partial negative charge on chlorine and a partial positive charge on hydrogen.
- C.Hydrogen chloride is ionic because chlorine completely transfers an electron to hydrogen.
- D.The bond in HCl is nonpolar because both atoms have the same electronegativity.
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4.Carbon tetrachloride (CCl₄) is classified as which type of covalent molecule?
- A.Polar
- B.Non-polar
- C.Ionic
- D.Metallic
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5.What is the outermost shell of an atom called?
- A.Core shell
- B.Valence shell
- C.Inner shell
- D.Electron shell
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