Created by StemPy LabTake the internuclear axis as the axis. Read five statements about orbital overlap. (i) A bond formed by two s orbitals is always a σ bond. (ii) A orbital and a orbital on the two atoms give zero overlap. (iii) An s orbital and a 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?
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← The figure shows two nitrophenols, I and II. Read five statements on their hydrogen bonds.
(i) In I, the hydrogen bond forms within one molecule.
(ii) In II, hydrogen bonds link the OH group of one molecule to the nitro group of another.
(iii) The hydrogen bond in I closes a ring of six atoms, counting the hydrogen.
(iv) Molecules of I hold one another more strongly than molecules of II do.
(v) A hydrogen bond is stronger than an O-H covalent bond.
How many of these statements are correct?In 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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