Fill in the blank. __________ =(Na2S)/(NaOH + Na2S)X 100% – McqOptions

MCQOPTIONS

1.	Fill in the blank. __________ =(Na2S)/(NaOH + Na2S)X 100%
A.	Sulfifdity
B.	Causticity
C.	Effective alkali
D.	Active alkali
Answer» B. Causticity

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