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.Which of the following sets of conditions is necessary for the formation of a covalent bond?
- A.Both atoms should have four or more electrons in their outermost shells (with exceptions like H, Be, B, Al), high electronegativity, high electron affinity, high ionisation energy, and negligible electronegativity difference.
- B.Both atoms should have low electronegativity, low electron affinity, and a large electronegativity difference to facilitate electron sharing.
- C.One atom should have high ionisation energy and the other should have low electron affinity to ensure stable electron transfer.
- D.Both atoms should have fewer than four electrons in their outermost shells and a significant electronegativity difference to form a shared pair.
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2.(a) The one which is composed of all the three kinds of bond [ionic, covalent and coordinate bond]
- A.Sodium chloride
- B.Ammonia
- C.Carbon tetrachloride
- D.Ammonium chloride
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3.Double covalent bond is formed by sharing ... electrons.
- a.One pairs of
- b.four pairs of
- c.Three pairs of
- d.two pairs of
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4.Why do polar covalent compounds ionise in water while non-polar covalent compounds do not?
- A.Polar covalent compounds have fractional charges that interact with water molecules, causing dissociation.
- B.Polar covalent compounds dissolve in water due to their high molecular weight.
- C.Non-polar covalent compounds ionise in water because they lack strong covalent bonds.
- D.Polar covalent compounds ionise because water molecules break their covalent bonds directly.
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5.Which of the following element pairs will form an ionic bond?
Pair P Elements of Group 1 & Group 2 Q Elements of Group 14 & Group 16 R Elements of Group 2 & Group 17 S Elements of Group 15 & Group 18 - a.P
- b.Q
- c.R
- d.S
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