Question: Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper to blue is : NaCN Fe( NOs), CH3COONH4 NaH,

Amongst the following, the total number of compounds whose aqueous solution turns 

Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper to blue is : NaCN Fe( NOs), CH3COONH4 NaH, PO4 NH,CI ZnCl2 NazC,0, KCI NazCO, NaHCO, Naz PO4 No, HPO, Given : Acid Kaj Kaz H,PO 103 10 10-11 10-5 10-12 10

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