Statement 1: AlCl3 ionises in solution.Statement 2: The hydration energy of AlCl3 exceeds the ionization energy.
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a
Both statements 1 and 2 are correct
b
Statement 1 is correct and statement 2 is incorrect
c
Statement 1 is incorrect and statement 2 is correct
d
Both statements 1 and 2 are incorrect
answer is A.
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Detailed Solution
Ionization energy required to convert Al to Al3+ is 5137 kJ mol−1. ΔHhydration for Al3+ is −4665 kJ mol−1 and ΔHhydration for Cl− is −381 kJ mol−1. So total hydration energy −4665 + 3 × −381 = −5808 kJ mol−1 is greater than ionization energy.