In the presence of KF, AIF3 is soluble in HF, find the complex formed:
Correct answer: A. K3(AlF6)
- A. K3(AlF6)
- B. AIH3
- C. K[AIF3H]
- D. K3[AIF3H3]
Explanation
Aluminium forms fluoride complexes more easily. So, AlF3 easily dissolve in mixture of (HF+KF).AlF3 is soluble in HF due to the formation of K3 [AlF6 ].AlF3 + 3KF (in presence of HF) → K3 [AlF6 ]Hence, option A is correct.
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Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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