Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is:KCN, K2SO4, (NH4)2C2O4, NaCl, Zn(NO3)2, FeCl3 , K2CO3, NH4NO3, LiCN

Engineering

Chemistry

Salt Hydrolysis and pH calculation

Question

Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is:

KCN, K₂SO₄, (NH₄)₂C₂O₄, NaCl, Zn(NO₃)₂, FeCl₃, K₂CO₃, NH₄NO₃, LiCN

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Basic salt are KCN, LiCN, K₂CO₃