Question

Why is grignard water sensitive?

Answer 1

See [here.](https://socratic.org/questions/why-must-grignard-reactions-be-anhydrous#273507)

Explanation:

`"Anhydrous"` literally means `"without water"`. So the question is asking the same thing as you are. Note that we can exploit the water sensitivity of Grignard reagents to make isotopically labelled `d_1-"alkanes"`.