Question

Find the odd one out and give reason:
Potassium, Calcium, Iron, drying

Answer 1

The odd one is drying.

$\text{Potassium, Calcium, Iron,} \: \text{\fcolorbox{red}{white}{\fcolorbox{red}{white}{drying}}}$

Answer 2

Answer:

bht i stead of drying it is given gravel