Number of salts in the following ,whose aqueous solutions shows basic nature `NaCl`, `Na_(3)PO_(4)`, `CH_(3)COOK`, `NH_(4)Cl`, `NaHSO_(4)` ,`Pb(OH)NO_(3)` ,`NaHCO_(3)`, `K_(2)HPO_(4)`

Amongst the following, the total number of compounds whose equesous solution turns red litmus paper blue is: {:(NaCN,KCl,CH_(3)COONH_(4),NaH_(2)PO_(4),ZnCl_(2), Na_(3)PO_(4)),(Fe(NO_(3))_(3),Na_(2)CO_(3),NH_(4)Cl,NaHCO_(3),Na_(2)C_(2)O_(4),Na_(2)HPO_(4)):} Given: {:("Acid",ka_(1),ka_(2),ka_(3)),(H_(3)PO_(4),10^(-3),10^(-8),10^(-12)),(H_(2)CO_(3),10^(-6),10^(-11),-),(H_(2)CO_(3),10^(-2),10^(-5),-):}

Find the number of aqueous solution which turn litmus paper blue. (a) NH_(4)OH (b) NaOH (c) NH_(4)CI (d) CH_(3)COONa (e) NaHSO_(4) (f) HCI

Which of the following is the correct formula for sodium phosphate ? Na_(3)PO_(4), Na(PO_(4))_(3),NaHPO_(4),Na_(2)(PO_(4))_(3)

Which of the following pair of solutions does not form a buffer solution? (A) NaH_(2)PO_(4) and Na_(2)HPO_(4) (B) H_(2)CO_(3) and NaHCO_(3) (C) NH_(4)OH and NH_(4)Cl (D) KOH and K_(2)SO_(4)

Predict if the solutions of the following salts are neutral, acidic or basic: NaCl, KBr, NaCN, NH_(4)NO_(3), NaNO_(2) and KF