Find the formula of halide of metal whose successive ionization enthalpies are x, 2x, 5x, 100x kj per mol respectively
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200
Say the metal is M and halogen X
The formula is MX3
As halogens have valency -1 and the given metal will have valency +3 because the first, second and third ionisation enthalpies are increasing gradually but the difference between third and fourth enthalpy is very high, which shows that metal achieves noble gas configuration when 3 electrons have been removed from it
The formula is MX3
As halogens have valency -1 and the given metal will have valency +3 because the first, second and third ionisation enthalpies are increasing gradually but the difference between third and fourth enthalpy is very high, which shows that metal achieves noble gas configuration when 3 electrons have been removed from it
Answered by
5
Answer:
MX3
Explanation:
the IE should generally increase. but 100x is a drastic change. therefore 3+ state is the stable than 4+ state. as valence of halogen is 1. the formula will be MX3.
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