Al-Baqara, alternatively transliterated Al-Baqarah (Arabic: البقرة, ‘al-baqarah; lit. “The Heifer” or “The Cow”), is the second and longest chapter (surah) of the Quran. It consists of 286 verses (āyāt) which begin with the “mysterious letters” (“muqatta’at”) A.L.M.
Also question is, what is the longest verse in the Quran essentially about?
The longest verse in Qur’an is Addayn أيةالدين “the debt” in the second Surah. It’s a whole page. in my opinion it’s a clear sign of the brilliant language of Quran. It’s about financial terms in case of loans and trading.