A) Milk of lime - sodium sulphate
B) Glauber's salt - calcium sulphate
C) Salt petre - potassium nitrate
D) Gypsum - calcium hydroxide
Correct Answer: C
Solution :
Potassium Nitrate occurs as a mineral niter and is a natural solid source of nitrogen. Potassium nitrate is one of several nitrogen containing compounds collectively referred to as saltpeter.You need to login to perform this action.
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