Will Munkar and Nakir ask the three questions of the deceased even if he was not buried in the correct manner?

The tribulation of the grave and the questioning by the two angels befall every accountable individual after their death, whether they were buried or not, or their body parts scattered, or they were devoured by wild beasts. Allah is capable of restoring life to a part of the deceased to question them. Similarly, punishment and reward affect both the soul and the body together in the grave, even if the body is in the sea or devoured by wild beasts.