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Find the number of aqueous solution whic...

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`

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Count the number of pairs which may act as a buffer solution when present in a given solution (a) CH_(3)COOH +NaOH (b) (c) NH_(4)CI + HNO_(3) (d) HCIO_(4) +KCIO_(4) (e) H_(3)PO_(4)+NaOH (f) H_(3)PO_(3) +NaOH (g) NaHCO_(3) + Na_(2)CO_(3) (h) H_(2)SO_(4) + Na_(2)SO_(4) (i) CH_(3) COONa + HCI (j)

Amonst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is: {:(KCN,K_(2)SO_(4),(NH_(4))_(2)C_(2)O_(4),NaCI),(Zn(NO_(3))_(2),FeCI_(3),K_(2)CO_(3),NH_(4)NO_(3)),(LiCN, , ,):}

Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is: {:(KCN,K_(2)SO_(4),(NH_(4))_(2)C_(2)O_(4),NaCI),(ZN(NO_(3))_(2),FeCI_(3),K_(2)CO_(3),NH_(4)NO_(3)),(LiCN,,,):}

(i) State the formula and name the conjugate base of each of the following species : (a) H_(3)O^(+) (b) HSO_(4)^(-) (C ) NH_(4)^(+) (d) HF (e ) CH_(3)COOH (f) CH_(3)NH_(3)^(+) (g) H_(3)PO_(4)(h)H_(2)PO_(4)^(-). (ii) State the formula and name the conjugate acid of each of the following species : (a) OH^(-) (b) HPO_(4)^(2-) (C) H_(2)PO_(4)^(-) (d) CH_(3)NH_(2) (e) CO_(3)^(2-) (f) NH_(3)(g) CH_(3)COO^(-) (h) HS^(-)

The set of molecules which violate the octet rule: (A) NO (B) PCl_(5) (C) ClO_(2) (D) CH_(4) (E) NH_(3)

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