Select the correct statement.

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Be and Al show diagonal relationship

Be forms tetrahedral complexes BeC2O422−

Al forms AlF63−, an octahedral complex

All of the above are correct statements

answer is D.

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Detailed Solution

Be have vacant orbital in 2p, hence it can forms 4 bonds, but aluminium can forms 6 bonds due to the availability of d-orbitals.

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