Select the correct option based on statements below:

Assertion (A): The addition reaction of water to but-1-ene in acidic medium yields butan-1-ol.
Reason (R): Addition of water in an acidic medium proceeds through the formation of a primary carbocation.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Hint: Primary carbocation is highly unstable.

The addition reaction of water to but-1-ene in acidic medium yields butan-2-ol not butan-1-ol. When the addition of water in an acidic medium then the formation of secondary carbonation takes place not primary carbocation.

The secondary carbocation is more stable than the primary carbocation.

The mechanism is as follows:

Hence, both Assertion and Reason are false.