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Q.

Identify the correct statements with respect to compounds of Beryllium
I. Beryllium oxide is amphoteric in nature
II. Beryllium hydride is formed by the reaction of beryllium with hydrogen
III. Beryllium hydride is formed by the reaction of beryllium chloride with lithium aluminium hydride
IV. Beryllium sulphate is the least soluble sulphate among the sulphates of alkaline earth metals

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a

I & II only

b

I & III only

c

II & IV only

d

II & III only

answer is B.

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Detailed Solution

Beryllium oxide is amphoteric in nature.

BeO+2HCl+2H2OBeCl2+2H2O BeO+2NaOH+2H2ONa2Be(OH)4+2H2O
Beryllium hydride is formed by the reaction of beryllium chloride with lithium aluminum hydride.

2BeCl2+LiAlH42BeH2+LiCl2+ AlCl3

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