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Chemistry
A Level

Explain why compounds of Fe^2+ are coloured in solution. (4 marks)

Fe2+ has an electron configuration of 1s22s22p63s23p63d6. When the ligands of the solution bind to the metal ion the d-orbitals...

Answered by Ben G. Chemistry tutor
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Explain the relative resistance to bromination of benzene compared to phenol and compared to cyclohexene.

Within benzene the electrons within the pi-system are delocalised. This means the electrons are spread across the whole ring and has a lower electron density making it less susceptible to electrophilic at...

Answered by Chemistry tutor
11132 Views

Why does butan-2-ol have no effect on plane polarised light?

Butan-2-ol can be produced as a result of reducing butanone with NaBH4. The hydride ion in NaBH4 is used as a nucleophile which can attack the C on the (C=O )either above or below the plane, depending on ...

Answered by Sunzida K. Chemistry tutor
7130 Views

What is the electronic configuration for the sodium ion, Na+ ?

1s2 2s2 2p6
Na+ has +1 positive charge and therefore it has lost an electron.It loses its one electron in its 3s orbital as that electron is at the highest energy - h...

Answered by Chemistry tutor
20497 Views

State and explain the difference in base strength between phenylamine and ammonia.

Phenylamine is a weaker base than ammonia. The lone pair on the nitrogen of phenylamine is delocalised into the ring, thus making the lone pair less available to combine with hydrogen ions. Also, in order...

Answered by Chemistry tutor
12511 Views

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