# A mixture of soda ash and pearl ash is known as

$\begin{array}{1 1}(a)\;\text{Fusion mixture}\\(b)\;\text{Ignition mixture}\\(c)\;\text{Bordeaux mixture}\\(d)\;\text{Explosion mixture}\end{array}$

A mixture of soda ash and pearl ash is known as Fusion mixture
Hence (a) is the correct answer.