Question

Nucleophicity order is a>b>c>d, Explain!​

Answer 1

Answer:

Hope this answer help you

Answer 2

Explanation:

We know that,

Nucleophilicity parallels basicity when they have same nucleophilic site.

Here, -O⁻ is the nucleophilic site.

So let us first write the acidity order and as basicity order is opposite of acidity order

Acidity order is : d>c>b>a [Acidic molecules in attachment]

CH₃SO₃H is strongly acidic group. So more acidic. similarly others...

thus, basicity order is : a>b>c>d ; which is nucleophilicity order.

Refer attachment.

Hope it helps!!