Created by StemPy LabIn each change below, a molecule takes up another species. In some changes the central atom keeps its hybridisation, while in others it gains a new one. A student wants the change in which the hybridisation of the central atom stays the same but the shape of the species changes. Which change is it?
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← Take the internuclear axis as the z axis. Read five statements about orbital overlap. (i) A bond formed by two s orbitals is always a σ bond. (ii) A 2px orbital and a 2pz orbital on the two atoms give zero overlap. (iii) An s orbital and a 2py orbital overlap sideways to form a π bond. (iv) A σ bond can be formed only by hybrid orbitals. (v) A π bond has its electron cloud above and below the internuclear axis. How many of these are correct?Hydrogen bonds hold together the molecules of water, of hydrogen fluoride and of many other compounds. Read two statements about them.
Statement I: An intermolecular hydrogen bond forms only between two molecules of the same compound.
Statement II: In hydrogen fluoride, fluorine pulls the shared electrons towards itself, so the hydrogen of one molecule is attracted to the fluorine of the next. →
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