Alkaline refers to an aqueous solution having a pH greater than 7 or a [OH-] greater than 10-7. An alkaline solution is also known as basic.
Definition of Alkaline in Chemstry
It's an aqueous solution with a pH greater than 7
![Glass beakers or strong alkali level, and red for weak acidity level](https://cdn.statically.io/img/www.thoughtco.com/thmb/43RcGzV7tH8cLeVt_Wz-pojVA6w=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/glass-beakers-indicating-blue-for-weak-alkali-level--green-for-strong-alkali-level--and-red-for-weak-acidity-level-87997927-570914e93df78c7d9ed6d099.jpg)
It's an aqueous solution with a pH greater than 7
Alkaline refers to an aqueous solution having a pH greater than 7 or a [OH-] greater than 10-7. An alkaline solution is also known as basic.