Referred to as _____ dry chemical, it is based upon mixtures of ammonium phosphates or ammonium phosphates and sulphates.
a. Mixture.
b. Multi-purpose.
c. New.
d. Red B.
e. Purple K.
Answer: B
Referred to as _____ dry chemical, it is based upon mixtures of ammonium phosphates or ammonium phosphates and sulphates.
a. Mixture.
b. Multi-purpose.
c. New.
d. Red B.
e. Purple K.
Answer: B