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JEE Main Chemistry question

ChemistryClassification of Elements and Periodicity in PropertiesJEE Main

Be and Al exhibit diagonal relationship. Which of the following statement about them is/are not true? I. Both react with HCl to liberate II. They are made passive by III. Their carbides given acetylene on treatment with water IV. Their oxides are amphoteric [Kerala CEE 2011]

Answer: (D)

Solution

Both Be and Al, being reactive metals, do liberate with dilute HCl (I true), and both develop a protective oxide layer that renders them passive towards concentrated (II true); both and are well-known amphoteric oxides (IV true). However,

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Question ID VK-133182