Could an Exocet missile sink or disable a battleship?
Short answerIt depends where the missile hits; belt armour changes the effect, while another hit could still produce a mission kill without sinking the ship.
NotesImpact location and the distinction between sinking and disabling are decisive. Exocet was designed for targets unlike a battleship protected by belt armour, so a belt hit would meet a different defensive problem. A hit elsewhere could still damage enough of the ship to remove it from the battle. The follow-up describes that outcome as a mission kill, separating survivability, fighting effectiveness, and outright loss.