Kimyoviy bog‘lanish

(2007-DTM.)
1. Quyidagi molekulalarning qaysi birida 4 ta σ-bog‘ bo‘ladi?
A) HCIO₃ B) HCIO₄ C) HCIO D) HCIO₂


DTM 2011
1. Quyidagi molekulalardan qaysi biri qutbsiz kovalent bog’lanishga ega?
A) CF₄ B) HCl C) H₂S D) NH₃

2. Quyidagi berilgan moddalardan qaysilari qutbli kovalent bog’lanishga ega?

A) H₂O_, CO₂ B) H₂O, H₂S C) CH₄, H₂S D) CO₂, H₂S


DTM 2013
1. Quyidagi moddalarni tarkibida (a) qutbli kovalent, (b) qutbsiz kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.
1) BaCl₂ 2) Cl₂ 3) CO₂ 4) MgSO₄ 5) Na₂S₂O₈ 6) Ca(NO₃)₂
A) a-3,4,5; b-2,5; c-6; d-1,4,5,6
B) a-3,4,5; b-2; c-6; d-1,4,6
C) a-3,4,5,6; b-2,5; c-6; d-1,4,5,6
D) a-3,4,5,6; b-2; c-6; d-1,4,5,6

2.Molekulalarning hajmiy o’lchami ham atomlarniki kabi kichik bo’lib, ularning diametrlari ... Å gacha bo’ladi.

A) 40 B) 20 C) 50 D) 30
3. Qaysi moddalar qatorida electron zichlik vodorod atomi tomon siljigan?
A) BH₃, SiH₄ B) BH₃, NH₃ C) H₂O, SiH₄ D) CH₄, H₂S

4. Quyidagi moddalarni tarkibida (a) qutbli kovalent, (b) qutbsiz kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) H₂ 2) LiOH 3) K₂O 4) CaSO₄ 5) H₃O⁺ 6) Ba(NO₃)₂
A) a-1; b-2,4; c-5, 6; d-3
B) a-1; b-2,4,5,6; c-5,6; d-2,3
C) a-1; b-2,4,6; c-5,6; d-2,3,4,6
D) a-1; b-2,4,5,6; c-5,6; d-2,3,4,6

5. Quyidagi moddalarni tarkibida (a) qutbli kovalent, (b) qutbsiz kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) F₂ 2) H₃O⁺ 3) Na₂O 4) K₃PO₄ 5) N₂O₅ 6) Al(NO₃)₃
A) a-2,4,5,6; b-1; c-2,5,6; d-3,4,6;
B) a-2,4,5,6; b-1; c-2,5; d-3,4,6;
C) a-2,4,5,6; b-1; c-2,5,6; d-3;
D) a-2,4; b-1; c-2,5; d-3,4,6

6. Quyidagi moddalarni tarkibida (a) qutbsiz kovalent, (b) qutbli kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) P₂O₅ 2) O₃ 3) CO 4) K₂SO₃ 5) Na₂S₂O₇ 6) Ba(NO₃)₂
A) a-2; b-1,3,4,5,6; c-3; d-4,6;
B) a-2,5; b-1,3,4,5,6; c-3; d-4,5,6;
C) a-2,5; b-1,3,4,5,6; c-3,6; d-4,5,6;
D) a-2; b-1,3,4,5,6; c-3,6; d-4,6;

7. Quyidagi moddalarni tarkibida (a) qutbli kovalent, (b) qutbsiz kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) Cl₂ 2) H₃O⁺ 3) CO 4) CaCO₃ 5) Na₂S₂O₃ 6) Al(NO₃)₃
A) a-2,3,4,5,6; b-1; c-2,3,6; d-4,6;
B) a-2,3,4,5,6; b-1,5; c-2,3; d-4,5,6;
C) a-2,3,4,5,6; b-1; c-2,3,6; d-4,5,6;
D) a-2,3,4,5,6; b-1; c-2,3; d-4,6;

8. Quyidagi elementleni elktromanfiylik qiymati kamayib borish tartibida joylashtiring.

1) Ca; 2) Ba; 3) Cl; 4) Sr; 5) S; 6) Si; 7) Al; 8) P
A) 1,2,3,4,5,6,7,8 B) 2,4,1,7,6,8,5,3 C) 8,7,6,5,4,3,2,1 D) 3,5,8,6,7,1,4,2

9. Quyidagi moddalarni tarkibida (a) qutbsiz kovalent, (b) qutbli kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) BaO 2) O₂ 3) SO₃ 4) CaCO₃ 5) H₂C₂O₄ 6) Ca(NO₃)₂
A) a-2; b-3,4,5,6; c-6; d-1,4,6;
B) a-2; b-3,5,6; c-6; d-1,4,6;
C) a-2,5; b-3,4,5,6; c-6; d-1,4,6;
D) a-2,5; b-3,4,5; c-6; d-1,4,6;

10. Quyidagi moddalarni tarkibida (a) qutbsiz kovalent, (b) qutbli kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) P₂O₃ 2) Br₂ 3) CO 4) K₂CO₃ 5) Na₂S₂O₈ 6) Ba(NO₃)₂
A) a-1,3,4,5,6; b-2,5; c-3,6; d-4,6;
B) a-1,3,4,5,6; b-2; c-3; d-4,6;
C) a-1,3,4,5,6; b-2; c-3,6; d-4,5,6;
D) a-1,3,4,5,6; b-2,5; c-3; d-4,5,6;

11. Quyidagi moddalarni tarkibida (a) qutbsiz kovalent, (b) qutbli kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) BaO 2) O₂ 3) SO₃ 4) CaCO₃ 5) H₂C₂O₄ 6) Ca(NO₃)₂
A) a-2; b-3,4,5,6; c-6; d-1,4,6;
B) a-2; b-3,5,6; c-6; d-1,4,6;
C) a-2,5; b-3,4,5,6; c-6; d-1,4,6;
D) a-2,5; b-3,4,5; c-6; d-1,4,6;

12. Quyidagi moddalarni tarkibida (a) qutbli kovalent, (b) qutbsiz kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) Cl₂ 2) NH₃ 3) KCl 4) K₂SO₃ 5) CO 6) KNO₃
A) a-2,4; b-1; c-5,6; d-3;
B) a-2,4,5,6; b-1; c-5,6; d-3;
C) a-2,4,6; b-1; c-5,6; d-3,4,6;
D) a-2,4,5,6; b-1; c-5,6; d-3,4,6;

13. Quyidagi moddalarni tarkibida (a) qutbsiz kovalent, (b) qutbli kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) H₂ 2) H₃BO₃ 3) KF 4) BaSO₃ 5) CO 6) KNO₃
A) a-1; b-2,4,5,6; c-5,6; d-3;
B) a-1; b-2,4,5,6; c-5,6; d-3,4,6;
C) a-1; b-2,4; c-5,6; d-3;
D) a-1; b-2,4,5; c-5,6; d-3,4,6;

14. Quyidagi moddalarni tarkibida (a) qutbli kovalent, (b) qutbsiz kovalent, (c) donor-akseptor, (d) ionli bog’lari bor bo’lganlarini aniqlang.

1) Cl₂ 2) NH₄⁺ 3) NaCl 4) Na₃PO₄ 5) N₂O₅ 6) Al(NO₃)₃
A) a-2,4; b-1; c-2,5,6; d-3;
B) a-2,4,5,6; b-1; c-5,6; d-3;
C) a-2,4; b-1; c-2,5,6; d-3,4,6;
D) a-2,4; b-1; c-2,5; d-3,4,6;