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The p-Block Elements

Short Answer Type

531. Give the resonating structures of NO₂ and N₂O₅.

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532. The HNH angle value is higher than HPH, HAsH and HSbH angles. Why?

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Long Answer Type

533. Describe the molecular shape of BrF₃ on the basis of VSEPR theory.

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Short Answer Type

534. Explain why NH₃ is basic while BiH₃ only feebly basic.

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535. Nitrogn exists as diatomic molecule but phosphorus as P₄, Why?

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Long Answer Type

536. Write main differences between the properties of white phosphorus and red phosphorus.

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Short Answer Type

537. Why does nitrogen show catenation properties less than carbon and phosphorus?

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538. Give preparation and properties of PCl₅.

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539. Can PCl₅ act as an oxidising as well reducing agent? Justify.

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Long Answer Type

540. Justify the placement of O, S, Se, Te and Po in the same group of the periodic table in terms of electronic configuraton, oxidation state and hydride formation.

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Previous Year Papers

Test Series

Test Yourself

Short Answer Type

531. Give the resonating structures of NO2 and N2O5.

Long Answer Type

Short Answer Type

Long Answer Type

Short Answer Type

Long Answer Type

531. Give the resonating structures of NO₂ and N₂O₅.