The major product formed when 1, 1, 1- trichloro - propane is treated with aqueous potassium hydroxide is :
Propyne
1 - Propanol
2 - Propanol
Propionic acid
More than one OH group cannot be present on the same carbon atom , as it makes the compound extremely unstable . So, it will readily lose H2O to form carboxylic acid.
Hence, the correct answer is Option (4)