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Identify the correct statements from the following :
I) Among chalcogens, oxygen has the least electron affinity.
II) Among lanthanides, Europium has the largest atomic radius.
III) The strongest acidic oxide is formed by chlorine.
IV) Among Si, Be, Mg, Na, P the most metallic element is Mg.

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All

I, II only

I, II, III only

II, III only

answer is C.

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Detailed Solution

Among Si, Be, Mg, Na, P, the most metallic element is Na.

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