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Chemistry · Oct / Nov 2025 · Paper 11 · Question 20

5070Arrangement of elements

Part of the Periodic Table is shown. W, X, Y and Z are not the correct symbols of the elements. Which statement is correct?

  1. AThe compound formed between X and W has covalent bonds.
  2. BW and Y are both gases at r.t.p. that contain covalent bonds.
  3. CX and Y react together more vigorously than Z and Y at r.t.p.
  4. DX and Z both have two outer-shell electrons.

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Correct answer: B. W and Y are both gases at r.t.p. that contain covalent bonds.

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