Which of the following statements is correct: The boiling point of H20 is signif

Question

Which of the following statements is correct: The boiling point of H20 is significantly higher than H_2 S due to greater dispersion forces. The boiling point of H_2 S is significantly higher than H_2 O due to greater dispersion forces. The boiling point of H_2 O is significantly higher than H_2 S due to the presence of H-bonding. The boiling point of H_2 S is significantly higher than H_2 O due to the presence of H-bonding. The best explanation for the fact that diamond is extremely hard is that diamond crystals are made up of atoms that are intrinsically hard because of their electronic structures are formed under extreme conditions of temperature and pressure are giant molecules in which each atom forms strong covalent bonds with all of its contains orbitals or bands of delocalized electrons that belong not to single atoms but to each whole For the next two questions consider the following Lewis Structure What is the identity of unknown element E? S Xe C Cl P

Explanation / Answer

27) Boiling point of H2O is significantly higher than H2S due to presence of Hydrogen bonding

28) Diamond is extremely because diamond crystals are gaint molecules in which each atom forms strong covalent bond with all of its neigbouring atoms

29) Atom E is surrounded by 4 bonds ( i.e 8 e-) and 2 lone pairs ( 4e-) , so total 12 e- ,   hence its has more electrons compared to octet , The atom is Xe

30) Xe is sp3d with 2 lone pairs hence its T shaped

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