Covalent Bonding
11 past-paper questions on Covalent Bonding · examined 2020–2025.
20251 question
Draw the dot-and-cross diagram to show the electronic arrangement in a molecule of hydrogen peroxide.
20242 questions
Which pair of molecules have the same number of electrons in covalent bonds?
Which molecule has only four electrons involved in covalent bonds?
20232 questions
Which molecule has the largest number of electrons involved in covalent bonds?
Complete the dot-and-cross diagram for a molecule of phosphorus(III) iodide. Show only the outer shell electrons.
20222 questions
Boron trifluoride, BF3, is a simple molecule. There are three covalent bonds in each BF3 molecule. Each of these bonds is made by sharing one electron from the boron atom and one electron from a fluorine atom. What is unusual about the bonding in boron trifluoride?
Draw the dot-and-cross diagram to show the bonding in N2. Show only the outer shell electrons.
20211 question
The bonding in a molecule of carbon dioxide can be represented by a dot-and-cross diagram. Which diagram is correct?
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