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.Compare the properties of electrovalent and covalent compounds. Which of the following correctly summarizes their key differences?
- A.Electrovalent compounds are solids with high melting points, conduct electricity in solution, and are soluble in water; covalent compounds are gases or liquids with low melting points, do not conduct electricity, and are soluble in organic solvents.
- B.Electrovalent compounds are liquids with low boiling points, conduct electricity in solid state, and are insoluble in water; covalent compounds are solids with high melting points and are soluble in water.
- C.Electrovalent compounds are gases with weak intermolecular forces, do not conduct electricity, and are soluble in organic solvents; covalent compounds are solids with strong electrostatic forces and conduct electricity in molten state.
- D.Electrovalent compounds have low melting points and are insoluble in water; covalent compounds have high boiling points, conduct electricity in solution, and are soluble in organic solvents.
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2.Which process involves the formation of ions from molecules?
- A.Dissociation
- B.Ionisation
- C.Hydrolysis
- D.Polymerisation
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3.How do atoms attain the noble gas configuration?
- A.By losing or gaining protons
- B.By losing, gaining, or sharing electrons in their valence shells
- C.By converting neutrons into electrons
- D.By absorbing light energy
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4.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 -
5.Why are ionic compounds stable?
- A.The electrostatic force of attraction between oppositely charged ions is much stronger than the repulsive force between ions of like charges.
- B.Ionic compounds are stable because they share electrons equally between atoms.
- C.The stability arises from the weak van der Waals forces between ions.
- D.Ionic compounds are stable due to the presence of metallic bonds between ions.
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