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.Two columns A and B are given:
Answer as follows : (i) Correct item from B matching sodium chloride. (ii) Correct item from B matching ammonium ion. (iii) Correct item from B matching carbon tetrachloride.Column A Column B 1. Sodium chloride Covalent bond 2. Ammonium ion Ionic bond 3. Carbon tetrachloride. Covalent and Coordinate bond -
2.Which statement correctly explains the formation of a single covalent bond, along with appropriate examples?
- A.A single covalent bond is formed by the sharing of one pair of electrons between two atoms, each contributing one electron. Examples include H₂, Cl₂, and HCl.
- B.A single covalent bond is formed when one atom donates both electrons to another atom. Examples include NaCl and MgO.
- C.A single covalent bond involves the transfer of one electron from one atom to another. Examples include H₂O and CO₂.
- D.A single covalent bond is formed by the sharing of two pairs of electrons between atoms. Examples include O₂ and N₂.
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3.Which type of compounds conduct electricity in the molten state?
- A.Covalent compounds
- B.Electrovalent compounds
- C.Coordinate compounds
- D.Metallic compounds
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4.Which of the following correctly defines an electrovalent (or ionic) bond?
- A.The force of attraction between two atoms sharing a pair of electrons.
- B.The force of attraction between a cation and an anion formed due to the transfer of one or more electrons from one atom to another.
- C.A bond formed when atoms lose electrons to become neutral particles.
- D.The weak force of attraction between molecules in a liquid or solid state.
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5.What is meant by a lone pair and a shared pair in the context of chemical bonding?
- A.A lone pair is a pair of electrons shared between two atoms, while a shared pair is a pair of electrons not involved in bonding.
- B.A lone pair is a pair of valence electrons not shared with another atom, while a shared pair is a pair of electrons shared between two atoms forming a covalent bond.
- C.A lone pair consists of electrons involved in ionic bonding, while a shared pair consists of electrons in metallic bonding.
- D.A lone pair refers to unpaired electrons in an atom, while a shared pair refers to electrons transferred from one atom to another.
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