Kimyoviy bog‘lanish

DTM 2012
1. Quyidagi moddalarni qaysi holat bo’yicha gidrolizga uchrashini aniqlang.
1) K₂CO₃; 2) Na₃PO₄; 3) (NH₄)₂SO₃; 4) (CH₃COO)₂Mg;
a) kation bo’yicha; b) anion bo’yicha; c) ham kation, ham anion bo’yicha; d) uchramaydi
A) 4c, 3c, 2d, 1b B) 1b, 3c, 2b, 4c C) 3c, 4d, 1b, 2b
D) 2b, 1b, 4c, 3a

2. Quyidagi moddalar nimasi bo’yicha va qanday muhitda gidrolizga uchrashini birlashtirib ko’rsating.

1) Na₂SO₃; 2) AlCl₃; 3) K₃PO₄; 4) (NH₄)₂SO₃
a) kation bo’yicha; 2) gidrolizga uchramaydi; 3) anion bo’yicha, 4) ham kation, ham anion bo’yicha;
I. ishqoriy muhit; II. Kislotali muhit; III. Neytral muhit
A) 2aI, 4dIII, 1bIII, 3cII
B) 2aII, 1bIII, 4dIII, 3cI
C) 3aII, 4dIII, 1bIII, 2cI
D) 3cI, 1bIII, 4bIII, 2aII

3. Quyidagi moddalarning qaysi holat bo’yicha gidrolizga uchrashini aniqlang.

1) Fe₂SO₄ 2) Na₃PO₄ 3) (NH₄)₂SO₃ 4) CaCl₂
a) kation bo’yicha; b) anion bo’yicha; c) ham kation, ham anion bo’yicha; d) uchramaydi
A) 3c, 4d, 1a, 2d B) 4c, 3c, 2b, 1a
C) 2b, 1a, 4c, 3a D) 1a, 2b, 3c, 4d

4. Qaysi tuzlar anion bo’yicha gidrolizga uchraydi?

1) CaS; 2) MgCl₂; 3) Na₂SO₄; 4) Al₂(SO₄)₃; 5) HCOOK; 6) BaJ₂; 7) Ca(NO₂)₂
A) 1,3,7 B) 2,4,6 C) 2,4,5,6 D) 1,3,5,7
DTM 2013
1. Lakmus, fenolftalein va metil zarg’aldog’i ta’sirida quyidagi tuz eritmalari qanday rangga o’tishini ko’rsating.
1) KNO₃; 2) Al(NO₃)₃; 3) Na₂CO₃; a) qizil; b) ko’k; c) to’q qizil; d) och pushti; e) sariq; f) o’zgarmaydi
A) 1-f,d,f; 2-a,f,d; 3-b,c,e
B) 1-f,a,f; 2-b, e, f 3-b, c, e
C) 1-f, f, f 2-a, f, d, 3-b, c, e
D) 1-f, f, f 2-b, f, e 3-a, c, e

2. Lakmus, fenollftalein va metil zarg’aldog’i ta’sirida quyidagi tuz eritmalari qandayrangga o’tishini ko’rsating.

1) LiNO₃ ; 2) Zn(NO₃)₂; 3) K₂CO₃; a) qizil b) ko’k c) to’q qizil d) och pushti e) sariq f) o’zgarmaydi
A) 1-f,d,f; 2-a,f,d; 3-b,c,e
B) 1-f,a,f; 2-b, e, f 3-b, c, e
C) 1-f, f, f 2-a, f, d, 3-b, c, e
D) 1-f, f, f 2-b, f, e 3-a, c, e

3. Lakmus, fenollftalein va metil zarg’aldog’i ta’sirida quyidagi tuz eritmalari qandayrangga o’tishini ko’rsating.

1) NaNO₃; 2) Cu(NO₃)₂; 3) LiCO₃; a) qizil b) ko’k c) to’q qizil d) och pushti e) sariq f) o’zgarmaydi
A) 1-f,d,f; 2-a,f,d; 3-b,c,e
B) 1-f,a,f; 2-b, e, f 3-b, c, e
C) 1-f, f, f 2-a, f, d, 3-b, c, e
D) 1-f, f, f 2-b, f, e 3-a, c, e

4. 0.1 M li 400 gr (ρ=1.25) alyuminiy sulfat eritmasidagi sulfat anionining mol miqdorini toping (suvning dissotsialanishi hisobga olinmasin) Gidrolizlanish darajasi 5% ga teng.

A) 0.096 B) 0.162 C) 0.07 D) 0.061

5. 0.1 M li 400 gr (ρ=1.25) alyuminiy sulfat eritmasidagi kation va anionlar mollarining nisbatini toping (suvning dissotsialanishi hisobga olinmasin) Gidrolizlanish darajasi 5% ga teng.

A) 1:2 B) 2:3 C) 1:3.26 D) 1:1.36

6. 0.1 M li 400 gr (ρ=1.25) alyuminiy sulfat eritmasidagi kation va anionlar mollarining yig’indisini toping (suvning dissotsialanishi hisobga olinmasin) Gidrolizlanish darajasi 5% ga teng.

A) 0.166 B) 0.07 C) 0.061 D) 0.162