Indian saltpetre is:

(a) KNO3

(b) NaNO3

(c) NaCl

(d) Na2CO3

Concept Videos :-

#3 | NaOH (Caustic Soda)
#4 | Na2CO3 (Sodium Carbonate), Gypsum & POP

Concept Questions :-

Some Important Compounds of Na
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