What is I2kl?

Answer 1

In chemistry I2KI is called 'Iodine potassium iodide'. I2KI is used to test for starches in Biology.

I do not know what I2Kl is, because that would imply that Kl is a element which it is not.

Answer 2

"I2kI" is a mathematical term typically used to represent the square of a complex number, where i represents the imaginary unit equal to the square root of -1. It stands for i^2 * k.