According to the official answer key, PbO isn’t ionic. Although I know this distinction between ionic and covalent isn’t defined sharply. But Pb is a metal and Oxygen is a non-metal. PbO should be more ionic than PbO2 since oxidation state of the Pb is lower, it will be less electronegative.
Q. Why is Aluminium chloride AlCl3?
What is Aluminium Chloride (AlCl3)? Aluminium chloride is also sometimes referred to as aluminium trichloride or aluminium (III) chloride. The compound is formed when aluminium and chlorine are reacted together. Its chemical formula is written as AlCl3.
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Q. Why AlF3 is ionic?
In between AlCl3 and AlF3, cation (Al) is the same both the compound. So the size of anion decides the nature of the compound. Chlorine is larger than fluorine, so the larger sized chlorine gets polarised to a greater extent by aluminium. So Alf3 becomes ionic.
Q. Why AlCl3 is covalent but NaCl is ionic?
NaCl is more ionic compared to the ionic nature of AlCl3. In NaCl both cation and anion have low charges while in AlCl3 the cation Al3+, is of a higher charge than Na+ while the anion is the same in both compounds. According to the Fajan’s rule, AlCl3 is more covalent in nature. iv.
Q. Is sif4 ionic?
The atomic charges in BF3 calculated by the “atoms in molecules” approach are +2.58 and -0.87 for B and F, respectively; in SiF4 the calculated charges are +3.42 and -0.86, and it has therefore been suggested that these molecules should be described as fully ionic (R. J. Gillespie, J. Chem. Inorganic Chemistry.
Q. How ionic bond is formation in AlCl3?
Answer. AlCl3 Although a metal- nonmetal compound, AlCl3 is not ionic (as might be predicted). Single covalent bonds form between alluminium and three chlorine atoms, forming AlCl3 molecules. Two of these join together (forming a ‘dimer’) with formula Al2Cl6.
Q. What type of bond is aluminum?
metallic bonds
Q. How many ions are in AlCl3?
So we need three chloride ions to bond with one aluminum ion, and the formula for aluminum chloride is AlCl3 .
Q. Is H2O a ionic or a covalent?
H2O is a polar covalent compound due to difference in electronegativities of hydrogen (less electronegative) and oxygen (more electronegative). Due to this difference hydrogen develops a slight positive charge and oxygen develops a slight negative charge resulting in development of partial charge seperation.
