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.What are the electrons present in the outermost shell of an atom called?
- A.Core electrons
- B.Valence electrons
- C.Free electrons
- D.Bonding electrons
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2.The diagram given below shows the bonding in the covalent molecule AB₂.
Which option represents the correct electronic configuration of atoms A and B before combining together to form the above molecule?
A B- A.2,4 and 2,8,6
- B.2,4 and 2,8,7
- C.2,8 and 2,8,8
- D.2,6 and 2,8,7
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3.129. Why is the methane molecule (CH₄) classified as a non-polar covalent compound?
- A.The carbon atom has a higher electronegativity than hydrogen, creating polar bonds.
- B.Its tetrahedral structure symmetrically distributes the four C-H bonds, resulting in no net charge separation.
- C.Methane forms ionic bonds between carbon and hydrogen atoms.
- D.The molecule has a linear shape, canceling out dipole moments.
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4.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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5.What is an ion called that is formed by the loss of electrons from a neutral atom?
- A.Anion
- B.Cation
- C.Neutral ion
- D.Polyatomic ion
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