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JEE MainChemistryp Block Elements (Group 15, 16, 17 & 18)

Consider two Group 15 elements, X and Y, with the following properties: Property Element X Element Y Maximum Covalency 4 6 Physical State at 298 K Gas Solid Based on the given information, identify the correct statement regarding elements X and Y.

Options

  1. AThe X-X single bond is weaker than the Y-Y single bond because of high interelectronic repulsion between non-b
  2. BElement X readily forms d - p multiple bonds with highly electronegative elements like oxygen.
  3. CThe X-X single bond is stronger than the Y-Y single bond due to the smaller atomic radius and higher electrone
  4. DThe hydride formed by element X is less basic than the hydride formed by element Y.

Correct answer

A. The X-X single bond is weaker than the Y-Y single bond because of high interelectronic repulsion between non-b

Step-by-step solution

From the given properties, Element X has a maximum covalency of 4 and is a gas at room temperature. In Group 15, nitrogen is the only element that is a gas and has its maximum covalency restricted to 4 due to the absence of vacant d-orbitals in its valence shell. Thus, X is Nitrogen. Element Y has a maximum covalency of 6 and is a solid, which corresponds to heavier Group 15 elements like Phosphorus, Arsenic, etc., which have vacant d-orbitals available to expand their octet. Let us evaluate the given options: The

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