0.1 M aqueous solution of K 4[ Fe ( CN )6] will have the same freezing point as 0.1 M aqueous solution of

Question

0.1 M aqueous solution of K 4[ Fe ( CN )6] will have the same freezing point as 0.1 M aqueous solution of (A) Fe ( SO 4)3 (B) Al 2( SO 4)3 (C) AlCl 3 (D) K 3 PO 4

Tardigrade Admin · Accepted Answer

0.1 MK 4[ Fe ( CN )6] longrightarrow 4 K ++[ Fe ( CN )6]-4 Δ Tf= i ( K f × m ) i =5 (1) underset0.1 MFe ( SO 4)3 longrightarrow Fe 2++3 SO 42-( i =4) (2) Al 2( SO 4)3 longrightarrow 2 Al 3++3 SO 42-( i =5) (3) AlCl 3 longrightarrow Al 3++3 Cl -( i =4) (4) K 3 PO 4 longrightarrow 3 K ++ PO 4 3-( i =4) If i = same Tf propto i T f = same for same concentration

Q. $0.1 M$ aqueous solution of $K_{4} [F e (CN)_{6}]$ will have the same freezing point as $0.1 M$ aqueous solution of

$F e (S O_{4})_{3}$

$A l_{2} (S O_{4})_{3}$

$A lC l_{3}$

$K_{3} P O_{4}$

Q. 0.1M aqueous solution of K4​[Fe(CN)6​] will have the same freezing point as 0.1M aqueous solution of

Fe(SO4​)3​

Al2​(SO4​)3​

AlCl3​

K3​PO4​

0.1MK4​[Fe(CN)6​]⟶4K++[Fe(CN)6​]−4ΔTf​=i(Kf​×m)i=5 (1) 0.1MFe(SO4​)3​​⟶Fe2++3SO42−​(i=4) (2) Al2​(SO4​)3​⟶2Al3++3SO42−​(i=5) (3) AlCl3​⟶Al3++3Cl−(i=4) (4) K3​PO4​⟶3K++PO4​3−(i=4) If i= same Tf​= same Tf​∝i for same concentration

Q. $0.1 M$ aqueous solution of $K_{4} [F e (CN)_{6}]$ will have the same freezing point as $0.1 M$ aqueous solution of

$F e (S O_{4})_{3}$

$A l_{2} (S O_{4})_{3}$

$A lC l_{3}$

$K_{3} P O_{4}$