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Identify the compounds A, X and Z in the following reactions: X→370KΔHBOX2→>370KΔZ

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प्रश्न

Identify the compounds A, X and Z in the following reactions:

\[\ce{X ->[Δ][370 K] HBO2 ->[Δ][> 370 K] Z}\]

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उत्तर

\[\ce{\underset{(X)}{H3BO3} ->[Δ, 370 K] \underset{Metaboric acid}{HBO2} + H2O}\]

\[\ce{4HBO2 ->[Δ, 370 K][-H2O] \underset{Tetraboric acid}{[H2B4O7]} ->[Read heat] \underset{Boric trioxide (Z)}{2B2O3} + H2O}\]

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पाठ 11: The p-block Elements - Multiple Choice Questions (Type - I) [पृष्ठ १३९]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 11
पाठ 11 The p-block Elements
Multiple Choice Questions (Type - I) | Q 34.(ii) | पृष्ठ १३९

संबंधित प्रश्‍न

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Boron does not exist as B3+ ion.


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Explain the following:

Electron gain enthalpy of chlorine is more negative as compared to fluorine.


Match the species given in Column I with the hybridisation given in Column II.

Column I Column II
(i) Boron in [B(OH)4] (a) sp2
(ii) Aluminium in [Al(H2O)6]3+ (b) sp3
(iii) Boron in B2H6 (c) sp3d2
(iv) Carbon in Buckminsterfullerene  
(v) Silicon in \[\ce{SiO^{4-}4}\]  
(vi) Germanium in [GeCl6]2–  

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Ionisation enthalpy


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AlCl3 , AlCl


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Boron compounds behave as Lewis acids because of their ______.


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