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Chemical Bonding and Molecular Structure
Question
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Which of the following hydrogen bonds is the strongest?

  • O – H …… N

  • F – H …… F

  • O – H ….. O

  • O – H …… F

Answer

B.

F – H …… F

The hydrogen bond in HF is strongest, because fluorine is the most electronegative element.

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Some More Questions From Chemical Bonding and Molecular Structure Chapter

What are 'Lewis structures'?

Name the conditions for the formation of an ionic bond between two atoms.

What is crystal lattice?

What is electrovalency?

What bond is present in MgCl2 molecules?

Write Lewis dot symbols for atoms of the elements Mg, Na, B, O, N, Br.

Draw the Lewis structure for the ionic compound by aluminium and fluorine.

Two elements A and B have the electronic configuration as:
A = 1s22s22p63s2 and B = 1s22s22p5
Write the empirical formula of the substance containing A and B.

What type of bonding would you expect between:
(i) a metal and a non-metal
(ii) a non-metal and another non-metal?

Give reasons in one or two sentences for the observation that in their compounds non-metals form anions and not cations.