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ChemistryEasyMCQ2022 Β· 25 Jun Shift 1

Q31.The pair, in which ions are isoelectronic with Al3 + is (1) Br- and Be2 + (2) Cl- and Li+ (3) S2 - and K+ (4) O2 - and Mg2 +

What This Question Tests

The question assesses the ability to determine the number of electrons in various ions and identify pairs that have the same number of electrons as Al³⁺.

Concepts Tested

Electron configurationIonic chargeIsoelectronic species

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