Question: surah kahf is which chapter?
Answer: Al-Kahf (Arabic: الكهف‎, "The Cave") is the 18th chapter (sūrah) of the Quran with 110 verses (āyāt). Regarding the timing and contextual background of the revelation (asbāb al-nuzūl), it is an earlier "Meccan surah", which means it was revealed in Mecca, instead of Medina.