Anomalous Behaviour of Beryllium

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Anomalous Behaviour of Beryllium: Overview

The topic explains the anomalous properties of beryllium. It discusses the diagonal relationship between beryllium and aluminium. It consists of chemical reactions for better understanding.

Important Questions on Anomalous Behaviour of Beryllium

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Why does Beryllium not react with water?

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Give reason why beryllium does not exhibit coordination numbers more than four.

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Beryllium does not exhibit coordination numbers more than _____ as in its valence shell there are only four orbitals.

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Beryllium does exhibit coordination number more than four.

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Write a short note on beryllium oxide.

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Like aluminium, beryllium is not readily attacked by acids because of the presence of an oxide film on the surface of the metal. This exhibits _____ between beryllium and aluminium.

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Both aluminium and beryllium remain passive towards acids.

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Explain how beryllium and aluminium reacts with an acid. Name the phenomenon exhibited by these two metals.

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Explain the structural features of the compound formed when aluminium reacts with chlorine.

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On reaction with chlorine, aluminium (III) chloride forms a dimer because

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Aluminium reacts with chlorine to form aluminium chloride which exists as

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Comment on the similarity of chlorides of beryllium and aluminium.

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Complete the given reaction of aluminium with sodium hydroxide:

2Al+2NaOH+6H2O         2NaAlOH4+?

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Identify the product of the reaction between beryllium and sodium hydroxide:

Be+2NaOH+2H2O         ?+H2

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Explain the reaction of beryllium with concentrated acid.

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Beryllium and aluminium are made passive by concentrated nitric acid.

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Explain the inertness of beryllium and aluminium with concentrated acids.

 

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Write the reaction of beryllium with sodium hydroxide.

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Write the reaction of aluminium with sodium hydroxide.

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Which one of the following elements has the least ionic Iodide?