1. Quyidagi xususiyatlari keltirilgan molekulalar ichidan nechtasida neytronlarga nisbatan elektronlari soni ko’p
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A) 3 B) 6 C) 9 D) 12
2. HJ+H2SO4 ->... Ushbu reaksiyada oksidlovchining ekvivalent massasi 12,25 g/mol, qaytaruvchiniki esa 128 g/mol ekanligi ma’lum bo’lsa, koeffissentlar yig'indisini toping. A) 9 B) 18 C) 13 D) 21 3. Quyidagi reaksiyalarning qaysi birida disproporsiallanish reaksiyasi bormaydi ? A) KCl03->... B) NaOH+Cl2-> ... C) NO2 +KOH→... D) NH4N03->... 4. Quyidagi reaksiyalardan qaysi birida Mn02 oksidlovchilik xossasini nomoyon qilyapti ? 1) Mn02 +H2S04→MnS04+02 +H20 2) Mn02 +02+K0H→ K2Mn04+H20 3) Mn02+H2→ MnO +H20 4) Mn02 +NaBi03 +HNO3→ HMn04 +Bi0N03 +NaN03 + H20 A) 1, 3 B) 2, 4 C) 1, 3, 4 D) 1, 2, 3, 4 5. Mn02 +NaBi03 +HN03→ HMn04 +Bi0N03+NaN03+ H20 Ushbu reaksiyada qaytaruvchi oldidagi koeffissentni aniqlang? A) 2 B) 3 C) 6 D) 4 6. Fe203+KN03+K0H → K2Fe04+KN02+H20 Ushbu reaksiyada chap va o’ng tomondagi koeffissentlar ayirmasi nechaga teng. A) 8 B) 7 С) 1 D) 3 7. FeSO4 +KMnO4 +H2SO4→ ... Koeffissentlar yig'indisini toping. A) 20 B) 16 C) 36 D) 32 8. Teng miqdorda uglerodning konsentrlangan va suyultirilgan nitrat kislotalarda erishidan hosil bo'lgan moddalar koeffissentlari nisbatini toping. A) 7:9 8) 6:8 C) 7:3 D) 9:7 9. H2S+K2Cr204 +H2SO4 →... O'ng va chap tomondagi koeffisentlar bir-biridan qanchaga farq qiladi ? A) 8 B) 12 C) 20 D) 4 10. NaJ + NaJ03 + H2S04 →… Qaytaruvchi oldidagi koeffissentni toping. A) 1 B) 4 C) 5 D) 3 11. Quyidagiiardan qaysilari suv ajralishi bilan bormaydi ? 1) P +HN03+...→ H3PO4 + NO +... 2) P +HN03+...→ H3PO4 + N02 +... 3) S02+HN03+...→ H2S04+N0+... 4) S02+HN03+...→H2S04+N02 +... 5) P4S7 +HN03+...→H3P04 +H2S04 +N02+... 6) P4S7+HN03+...→H3P04 +H2S04 +N0+... A) 1, 3, 6 B) 2, 4, 5 C) 1, 6 D) 2, 3, 4, 5 12. Mn(N03)2+ NaBi03+HN03→ HMnO4 + Bi0N03+NaN03 +H20 Ushbu reaksiyada oksidlovchi va qaytaruvchi oldidagi koeffissentlarni tanlang. A) 2; 5 B) 4; 5 C) 5; 2 D) 5; 4 13. Na2S203+Br2+Na0H →... Koeffissentlar yig'indisini toping. A) 15 B) 30 C) 45 D) 5 14. KBr+KMn04+H2S04→... Koeffissentlar yig'indisini toping. A) 20 B) 21 C) 41 D) 32 15. Cr203+ Br2+Na0H→... Koeffissentlar yig'indisini toping. A) 14 B) 13 C) 27 D) 40 16. Na2S03+KMn04+K0H→... Reaksiyada chap va o'ng tomondagi koeffissentlar ayirmasini toping. A) 4 B) 5 С) 1 D) 2 17. NaJ+KMnO4 +KOH→... Koeffissentlar yig'indisini toping. A) 10 B) 11 C) 12 D) 13 18. Nitrat kislotaning yorug'lik ta'sirida parchalanish reaksiyasi koeffissentlarini ko'rsating. A) 4; 4; 1; 2 B) 4; 1; 2; 2 C) 2; 2; 1; 2 D) 4; 1; 2; 3 19. SnSO4 +KMnO4 +H2SO4 →... Oksidlovchi va qaytaruvchi oldidagi koeffissentlarni ko'rsating. A) 2; 5 B) 5; 2 C) 10; 3 D) 3; 10 20. K2Mn04+C02→... Reaksiya o'ng tomonidagi koeffissentlar yig'indisini toping. A) 5 B) 4 C) 10 D) 12 21. Na2S03→... Ushbu reaksiya koeffissentlari yig'indisini toping ? A) 4 B) 8 C) 5 D) 12 22. Mn304+Al→ Al203 +Mn Ushbu reaksiyadagi koeffissentlar yig'indisini toping. A) 11 B) 13 C) 24 D) 28 24. Na2S4O6 + KMn04+HN03-> Na2S04+H2S04+Mn(N03)2+KN03+H20 Reaksiya ikkala tomonidagi koeffissentlar yig’indisini toping. A) 112 B) 115 C) 120 D) 128 25. Мn3О4 +КСlO3 +К2СО3→... Ushbu reaksiyadagi koeffissentlar yig'indisini toping. A) 32 B) 35 C) 40 D) 42 26. As2S3+HNO3→H3AsO4+SO2+N02+H20 Ushbu reaksiyadagi koeffissentlar yig'indisini toping. A) 50 B) 56 C) 58 D) 54 27. FeCl2+KMnO4 +HCl→... Reaksiya koeffissentlari yig'indisini toping. A) 48 B) 56 C) 60 D) 64 28. KN02+KJ+H2S04→... Oksidlovchining koeffissentini toping. A) 2 B) 7 C) 4 D) 3 29. Cl2+Br2+KOH→... Koeffissentlar yig'indisini toping. A) 18 B) 24 C) 36 D) 40 30. NH3+KMn04+K0H→... Koeffissentlar yig'indisini toping. A) 18 B) 15 C) 28 D) 33 31. Ti2(S04)3+KCl03 +H20→ Ti0S04+KCl+H2SO4 Ushbu reaksiyada koeffissentlar yig'indisini toping. A) 14 B) 17 C) 18 D) 20 32. K2Mn04+H20->... Reaksiya koeffissentlari yig'indisini toping. A) 9 B) 12 C) 15 D) 18 33. Fe(N03)2+Mn02+HN03->... O'ng tarafdagi koeffissentiar yig'indisini toping. A) 5 B) 7 C) 12 D) 2 34. KNCS+K2Cr207+H2S04 →... Reaksiya koeffissentlari yig'indisini toping. A) 170 B) 172 C) 176 D) 180 35. CuFeS2+HN03(k) →... Koeffissentlar yig'indisini toping. A) 50 B) 51 C) 53 D) 56 36. CuFeS2+HN03(s) →... Koeffissentlar yig'indisini toping. A) 70 B) 71 C) 74 D) 76 37. Quyidagilardan qaysi birida vodorod peroksid oksidlovchi xossasini nomoyon qiladi? 1) H202+HJ→... 2) H202+HJ03->... 3) H202+KMn04+HN03->... 4) H202 +CrCl3+KOH->... 5) H202+H2S->... A) 1, 4, 5 B) 1, 2, 4, 5 C) 2, 3 D) 1, 2, 5 38. H202 +СгСl3 +КOH→ ... Reaksiyadagi koeffissentlar yig'indisini toping. A) 28 B) 30 C) 31 D) 35 39. H202+HJ03->... Reaksiyaning koeffissentlari yig’indisini toping. (oksidlovchi ham, qaytaruvchi ham oddiy moddaga o’tgan) A) 18 B) 19 C) 20 D) 21 40. H202+H2S→... Reaksiyaning koeffissentlari yig'indisini toping. A) 5 B) 8 C) 10 D) 12 41. H202+KMnO4 +HN03→... Reaksiya koeffissentlari yig'indisini toping. A) 28 B) 30 C) 32 D) 34 42. Pb02+ HCl→... Reaksiya koeffissentlari yig'indisini toping. A) 5 B) 7 C) 9 D) 11 43. NaN02 ni kaliy permanganatning kislotali, ishqoriy va neytral muhitda oksidlanish reaksiyalarida oksidlovchi oldidagi koeffissentlarni toping. A) 5, 1, 3 B) 2, 4, 3 C) 2, 2, 2 D) 2, 3, 5 44. Cr(N03)3+NaBi03+HN03→... Reaksiyada koeffisentlar yig'indisini toping. A) 18 B) 20 C) 16 D) 21 45. NaBr+KMn04+H20→... Reaksiyada koeffissentlar yig'indisini toping. A) 23 B) 25 C) 26 D) 28 46. Mn02 +KCl03 +KOH→... Oksidlovchi oldidagi koeffissentni toping. A) 3 B) 1 C) 4 D) 2 47. FeS2+HN03→NO+... Oksidlovchi oldidagi koeffissentni aniqlang. A) 8 В) 1 C) 4 D) 18 48. Vodorod sulfidning bromli suv bilan oksidlanishida oksidlangan modda oldidagi koeffissentini aniqlang. A) 1 B) 4 C) 5 D) 8 49. Cr203 +NaN03+K0H→... Qaytarilgan modda oldidagi koeffissentni aniqlang. A) 1 B) 3 C) 7 D) 4 50. HCl +KBrO3 +KJ→... Qaytarilgan modda oldidagi koeffissentni aniqlang. A) 1 B) 3 C) 7 D) 6 51. Ca(Cl0)2+Na2S+H20→... Reaksiyada koeffissentlar yig'indisini toping. A) 5 B) 12 C) 7 D) 8 52. Cu2S+HN03→ N2+... Reaksiyada koeffissentlar yig'indisini toping. A) 11 B) 12 C) 14 D) 13 53. Na2С204+КВг03 +Н20->... Qaytarilganmodda oldidagi koeffissentni aniqlang. A) 1 B) 3 C) 4 D) 5 54. AgNO3+PH3+H20->... Oksidlangan modda oldidagi koeffissentni aniqlang. A) 1 B) 3 C) 8 D) 4 55. HClO+HCl→... Ushbu reaksiyadagi koeffissentlar yig’indisini toping. Download 6.25 Mb. Do'stlaringiz bilan baham: 
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