Kimyoviy bog‘lanish

DTM 2014
1. Natriy sulfat dissotsilanishidan hosil bo’lgan kationlar sonining dissotsilanmagan molekulalar soniga nisbati 9:1 bo’lsa, dissotsilanish darajasini (%) aniqlang.
A) 75 B) 82 C) 90 D) 87

2. Kalsiy xlorid dissotsilanishidan hosil bo’lgan kationlar sonining dissotsilanmagan molekulalar soniga nisbati 8:1 bo’lsa, dissotsilanish darajasini (%) toping.

A) 89 B) 80 C) 73 D) 70

3. Na₂CO₃ va CrCl₃ eritmalari qanday nisbatda aralshtirilganda hosil bo’lgan eritmada xrom(III) ionlari mavjud bo’ladi?(gidroliz hisobga olinmasin)

1) 2CrCl₃ + 3Na₂CO₃ 2) CrCl₃ + 3Na₂CO₃
3) 3CrCl₃ + 2Na₂CO₃ 4) 3CrCl₃ + 5Na₂CO₃
5) 3CrCl₃ + 4Na₂CO₃ 6) 2CrCl₃ + 5Na₂CO₃
A) 1,2,4 B) 1,3,5 C) 2,4,6 D) 3,5,6

4. Kaliy sulfat dissotsilanishidan hosil bo’lgan katioonlar soni, dissotsilanmagan molekulalarning atomlari soniga teng bo’lsa, dissotsilanish darajasini (α%) toping.

A) 70 B) 78 C) 90 D) 87,5

5. Al(NO₃)₃ dissotsilanmagan molekulalar soni va ionlar soni 1:12 nisbatda bo’lsa, dissotsilanish darajasini toping.

A) 75 B) 92 C) 80 D) 85

6. Na₂SO₃ va CrCl₃ eritmalari qanday nisbatda aralashtirilganda hosil bo’lgan eritmada xrom(III) ionlari mavjud bo’ladi?(gidroliz hisobga olinmasin)

1) 2CrCl₃ + 3Na₂SO₃ 2) CrCl₃ + 3Na₂SO₃
3) 3CrCl₃ + 2Na₂SO₃ 4) 3CrCl₃ + 5Na₂SO₃
5) 3CrCl₃ + 4Na₂SO₃ 6) 2CrCl₃ + 5Na₂SO₃
A) 1,2 B) 1,2,6 C) 3,4,5 D) 3,4,5,6

7. Aluminiy nitrat dissotsilanganda dissotsilanmagan molekulalar soni va ionlar 1:12 nisbatda bo’lsa, dissotsilanish darajasini aniqlang.

A) 75 B) 85 C) 80 D) 92

8. Ammoniy fosfat dissotsilanishidan hosil bo’lgan anionlar soni, dissotsilanmagan molekulalarning atomlar soniga teng bo’lsa, dissotsilanish darajasini toping.

A) 95 B) 83 C) 90 D) 87

9. Na₂SO₃ va CrJ₃ eritmalari qanday nisbatda aralashtirilganda hosil bo’lgan eritmada xrom(III) ionlari mavjud bo’lmaydi? (gidroliz hisobga olinmasin)

1) 2CrJ₃ + 3Na₂SO₃ 2) CrJ₃ + 3Na₂SO₃
3) 3CrJ₃ + 2Na₂SO₃ 4) 3CrJ₃ + 5Na₂SO₃
5) 3CrJ₃ + 4Na₂SO₃ 6) 2CrJ₃ + 5Na₂SO₃
A) 3,4,5,6 B) 1,2,6 C) 3,4,5 D) 1,2

10. Na₂CO₃ va Cr₂(SO₄)₃ eritmalari qanday nisbatda aralashtirilganda hosil bo’lgan eritmada xrom(III) ionlari mavjud bo’ladi?(gidroliz hisobga olinmasin)

1) 2Cr₃(SO₄)₃ + 3Na₂SO₃ 2) Cr₂(SO₄)₃ + 3Na₂SO₃
3) 3Cr₂(SO₄)₃ + 2Na₂SO₃ 4) 3Cr₂(SO₄)₃ + 5Na₂SO₃
5) 3Cr₂(SO₄)₃ + 4Na₂SO₃ 6) 2Cr₂(SO₄)₃ + 5Na₂SO₃
A) 2,5,6 B) 1,3,4 C) 4,5 D) 1,2,3,6