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Science (086) — CBSE Class 10 board question

Q1. [1] § 4.2.1 Saturated and Unsaturated Carbon Compounds § 4.2.3 Will you be my Friend?
The electron dot structure of chlorine molecule is :
  1. (a) Electron dot structure option (a)
  2. (b) Electron dot structure option (b)
  3. (c) Electron dot structure option (c)
  4. (d) Electron dot structure option (d)
Previously asked in CBSE board exam
2023 31/4/1 Q7
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Generated by claude-sonnet-4-6 · 2026-06-15 06:48 · grounding rag
Model Answer

(c)

The correct electron dot structure shows each Cl atom with 3 lone pairs and 1 shared pair between them, satisfying the octet of both chlorine atoms (valency = 1).

Explanation

Chlorine has 7 valence electrons. Each Cl needs 1 more electron to complete its octet, so it shares one electron with the other Cl, forming a single covalent bond with 3 lone pairs on each atom. The option showing exactly this arrangement is correct. In MCQs, quickly count the dots: each Cl should have 6 dots (3 pairs) + 1 shared pair between them.

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