Name an element from Group 2 which forms an amphoteric oxide and a water soluble sulphate
Name an element from Group 2 which forms an amphoteric oxide and a water soluble sulphate
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1 Answer
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This is a short answer type question as classified in NCERT Exemplar
The element from group 2 is beryllium. Be (OH)2 is amphoteric. It reacts with both acids and bases. It reacts with acid to form beryllium chloride and it reacts with base to form beryllate ion which is soluble in sodium hydroxide. The reaction is shown below.
Be (OH)2+2OH−→ [Be (OH)4]2−
Be (OH)2+2HCl→BeCl2+2H2O
Beryllium sulfate are readily soluble in water.
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Li+ has the highest hydration enthalpy.
Hence it is most hydrated
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