Which of the following is the strongest base?Select answer from the options belowmethoxide phenoxide bromide Save for LaterSubmit Answer
Question
Which of the following is the strongest base?
Select answer from the options below:
- methoxide
- phenoxide
- bromide
Save for Later
Submit Answer
Solution
The strongest base among methoxide, phenoxide, and bromide is methoxide.
Here's why:
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Methoxide (CH3O-) is an alkoxide, which are generally strong bases due to the negative charge on oxygen. This negative charge is stabilized by the alkyl group (CH3 in this case) through the +I effect, which makes it a strong base.
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Phenoxide (C6H5O-) is also a strong base, but not as strong as methoxide. This is because the negative charge on the oxygen atom is delocalized into the benzene ring, reducing the availability of the lone pair of electrons on the oxygen for donation, hence reducing its basicity.
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Bromide (Br-) is a weak base. It is a conjugate base of a strong acid (HBr), and according to the principle of "the stronger the acid, the weaker its conjugate base", bromide is a weak base.
So, methoxide is the strongest base among the given options.
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