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.Polarity of a molecule depends on its ... difference.
- a.size difference
- b.electron affinity
- c.electropositivity
- d.electro-negativity
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2.53. Assertion: Diamond is a good conductor of electricity. Reason: Diamond has a three-dimensional network of covalent bonds. (a) Assertion and reason both are correct statements and reason is the correct explanation of the assertion. (b) Assertion and reason both are correct statements, but reason is not the correct explanation of the assertion. (c) Assertion is false, but reason is true (d) Assertion is true, but reason is false.
- A.Assertion and reason both are correct statements and reason is the correct explanation of the assertion.
- B.Assertion and reason both are correct statements, but reason is not the correct explanation of the assertion.
- C.Assertion is false, but reason is true
- D.Assertion is true, but reason is false.
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3.What is a lone pair of electrons in a molecule?
- A.Electrons shared between two atoms
- B.Electrons that are unpaired and free to move
- C.A pair of electrons on an atom that does not participate in bonding
- D.Electrons involved in ionic bonding
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4.Give reasons: Why can hydrogen chloride be termed as a polar covalent compound?
- A.Chlorine and hydrogen share electrons equally, resulting in no charge separation.
- B.Chlorine is more electronegative than hydrogen, causing unequal electron sharing and a dipole moment.
- C.Hydrogen chloride is ionic because chlorine completely transfers an electron to hydrogen.
- D.The bond between hydrogen and chlorine is nonpolar because both atoms have similar electronegativities.
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5.Which electron arrangement for the outer shell electrons in a covalent compound is correct?
- A.H ⇌ C H H
- B.C H ⇌ H X H
- C.H ⇌ N H H
- D.C H ⇌ N H H H
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