1. Tenglamasi CuCO3 Cu(OH)2
Quyidagi tenglamaning o‘ng tomonidagi moddalar koeffitsientlarini hisoblang
Yüklə 105,24 Kb.
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4. Quyidagi tenglamaning o‘ng tomonidagi moddalar koeffitsientlarini hisoblang. Cr2(SO4)3+Cl2+KOH→K2CrO4+KCl+K2SO4+H2O
A) 3 B) 4 C) 17 D) 19 E) 20 5. Quyidagi reaksiyada H3PO3→PH3+P2O5+H2O moddalar koeffitsientlari yig‘indisini hisoblang. A) 22 B) 20 C) 19 D) 44 E) 17 6. Quyidagi reaksiya tenglamasidagi koeffitsientlar yig‘indisini toping. Cu+HNO3(suyul.)→Cu(NO3)2+… A) 14 B) 16 C) 20 D) 22 E) 24 7. Quyidagi reaksiyada qatnashgan moddalarning koeffitsientlar yig‘indisini toping. Cu2S+HNO3→Cu(NO3)2+NO+H2SO4+… A) 52 B) 48 C) 27 D) 26 E) 54 8. Quyidagi tenglamadagi oksidlovchining koeffitsientini toping. CuFeS2+HNO3→Cu(NO3)2+Fe(NO3)3+H2SO4+NO2+H2O A) 18 B) 20 C) 22 D) 24 E) 26 9. Quyidagi oksidlanish – qaytarilish reaksiyasi tenglamasidagi koeffitsientlar yig‘indisi nechaga teng? KMnO4+H2S→MnO2+S+K2S+H2O A) 3 B) 16 C) 5 D) 2 E) 4 10. Quyidagi oksidlanish – qaytarilish reaksiyasi tenglamasidagi koeffitsientlar yig‘indisi nechaga teng? Cr2O3+KClO3+KOH→K2CrO4+KCl+H2O A) 6 B) 8 C) 12 D) 15 E) 11 11. Quyidagi reaksiya tenglamasida qatnashuvchi moddalar koeffitsientlarining ketma ketligini aniqlang. C6H5CH3+KMnO4→C6H5COOK+MnO2+KOH+H2O A) 1.2.1.2.1.1 B) 2.3.2.3.1.2 C) 3.2.3.2.1.2 D) 2.2.2.2.1.2 E) 2.1.2.1.1.3 12. Quyidagi reaksiya tenglamasida qatnashuvchi moddalar koeffitsientlarining ketma ketligini aniqlang. S2H5OH+KMnO4+H2SO4→CH3COOH+MnSO4+K2SO4+H2O A) 5.4.6.5.4.2.11 B) 5.2.3.5.2.1.12 C) 4.6.5.4.4.8.11 D) 2.3.5.2.3.6.12 E) 5.6.4.4.5.2.11 13. Quyidagi oksidlanish – qaytarilish reaksiyasida ishtirok etayotgan barcha molekulalar soni nechta? KNO2+KMnO4+H2SO4=K2SO4+MnSO4+KNO3+H2O A) 7 B) 20 C) 21 D) 24 E) 18 14. Quyidagi raksiyasi tenglamasining koeffitsientlar qatorini toping. MnO2+NaBiO3+HNO3=HMnO4+BiONO3+NaNO3+H2O A) 2.3.8.2.3.3.4 B) 1.2.3.1.2.2.1 C) 2.5.8.2.5.5.3 D) 5.3.6.5.3.3.2 E) 2.3.6.2.3.3.2 15. Quyidagi reaksiyada necha moldan oksidlovchi va qaytaruvchi ishtirok etadi? Cu+HNO3(kons.)→Cu(NO3)2+NO2+H2O A) 4,2 B) 7,3 C) 1,4 D) 3,7 E) 2,1 16. Quyidagi reaksiyasi tenglamasida oksidlovchining necha moli qatnashadi? CuO+NH3→Cu+N2+H2O A) 1 B) 2 C) 3 D) 4 E) 5 17. Quyidagi oksidlanish – qaytarilish reaksiyada ishtirok etayotgan barcha molekulalar soni nechta? K2Cr2O7+KI+H2SO4=I2+Cr2(SO4)3+K2SO4+H2O A) 27 B) 28 C) 29 D) 31 E) 22 18. FeSO4+K2Cr2O7+H2SO4→Fe2(SO4)3+Cr2(SO4)3+K2SO4+H2O reaksiya tenglamasining chap tomonidagi koeffitsientlar yig‘indisi nechaga teng? A) 6 B) 9 C) 11 D) 12 E) 14 19. Quyidagi reaksiyalarning tenglamalarini tugallab mis, sulfat kislota, temir(II)xlorid va xlor molekulalari uchun koeffitsientlarni aniqlang. 1) Cu+H2SO4(kons.)→… 2) FeCl2+Cl2→… A) 1,2,2,2 B) 2,2,2,1 C) 1,2,2,1 D) 3,2,3,1 E) 2,1,1,2 20. Quyidagi reaksiyada oksidlovchi oldidagi koeffitsientni ko‘rsating. H2S+HNO3=H2SO4+NO+H2O A) 6 B) 4 C) 8 D) 2 E) 5 21. Reaksiya tenglamasini tugating, noma’lum moddani va barcha koeffitsientlar yig‘indisini ko‘rsating. CH3OH+K2Cr2O7+H2SO4=HCOOH+Cr2(SO4)3+H2O+… A) K2SO4 28 B) K2SO4 31 C) KOH, 31 D) KOH, 18 E) K2CrO4 10 22. Tenglamalari quyida keltirilgan oksidlanish – qaytarilish reaksiyalarining qaysi biri to‘g‘ri tenglashtirilgan? 1) FeS+2O3→FeSO4+O2; 2) FeS+6O3→FeSO4+7O2; 3) FeS+4O3→FeSO4+4O2 A) 1 B) 2 C) 3 D) 1 va 2 E) hammasi to‘g‘ri tenglashtirilgan 23. Quyidagi reaksiyada qaytaruvchiningoldidagi koeffitsientini aniqlang. K2Cr2O7+ H2S+ H2SO4= Cr2(SO4)3+S+… A) 2 B) 3 C) 1 D) 5 E) 6 24. Quyidagi reaksiya tenglamacining o‘ng tomonidagi koeffitsientlar yig‘indisi qanchaga teng? K2Cr2O7+HI+ H2SO4= Cr2(SO4)3+I2+K2SO4+H2O A) 9 B) 10 C) 11 D) 12 E) 13 25. Quyidagi reaksiyada barcha koeffitsientlar yig‘indisi nechaga teng? PbO2+MnSO4+HNO3=HMnO4+PbSO4+Pb(NO3)2+H2O A) 22 B) 20 C) 21 D) 23 E) 24 26. Quyidagi reaksiyada qaytaruvchining oldidagi koeffitsientini aniqlang. KMnO4+H2O2+H2SO4=MnSO4+ K2SO4+O2+H2O A) 4 B) 5 C) 6 D) 7 E) 8 27. Quyidagi reaksiyaning o‘ng tomonidagi koeffitsientlar yig‘indisi nechaga teng? Mn3O4+Al=Al2O3+Mn A) 11 B) 13 C) 14 D) 16 E) 19 28. Quyidagi reaksiyaning chap tomonidagi koeffitsientlar yig‘indisi nechaga teng? Mn3O4+KClO3+K2CO3→K2MnO4+KCl+CO2 A) 13 B) 15 C) 17 D) 21 E) 23 29. Quyidagi reaksiyaning barcha koeffitsientlar yig‘indisi nechaga teng? As2S3+HNO3=H3AsO4+SO2+NO2+H2O A) 27 B) 38 C) 49 D) 58 E) 63 30. Quyidagi reaksiyada oksidlovchi oldidagi koeffitsient nechaga teng. NH3+KMnO4+KOH=KNO3+K2MnO4+H2O A) 5 B) 2 C) 8 D) 11 E) 13 31. Quyidagi reaksiyaning chap tomondagi koeffitsientlar yig‘indisi nechaga teng? H2O2+CrCl3+KOH=K2CrO4+KCl +H2O A) 13 B) 15 C) 18 D) 21 E) 5 32. Quyidagi reaksiyalarning qaysi biri to‘g‘ri tenglashtirilgan? 1) 2H2SO4+4H2S→6H2O+SO2+5S 2) 4H2SO4+2H2S→6H2O+5SO2+5S 3) H2SO4+H2S→2H2O+SO2+S A) 1 B) 2 C) 3 D) 1 va 2 E) hammasi to‘g‘ri 33. Azot olish reaksiyasi tenglamasidagi Fe+KNO3→N2+Fe2O3+K2O koeffitsientlar yig‘indisini hisoblang. A) 27 B) 28 C) 30 D) 25 E) 26 34. Al+HNO3(suyul.)→Al(NO3)3+NH4NO3+H2O reaksiyadagi moddalar koeffitsientlarining yig‘indisini toping. A) 28 B) 38 C) 48 D) 58 E) 18 35. Quyidagi reaksiyada oksidlovchi oldidagi koeffitsientni ko‘rsating. CuS+HNO3→Cu(NO3)2+H2SO4+NO2+H2O A) 8 B) 10 C) 12 D) 21 E) 30 36. Quyidagi oksidlanish – qaytarilish reaksiya tenglamasiga koeffitsientlar qo‘yib tenglashtiring. As2S3+HNO3+H2O=H3AsO4+H2SO4+NO. Reaksiya tenglamasidagi barcha koeffitsientlar yig‘indisini ko‘rsating. A) 25 B) 32 C) 56 D) 78 E) 80 37. Quyidagi reaksiya tenglamalarining qaysi biri to‘g‘ri tenglashtirilgan. 1) 5C6H5C2H5+24KMnO4+36H2SO4→3C6H5COOH+12K2SO4+24MnSO4+52H2O+19CO2 2) 5C6H5C2H5+30KMnO4+45H2SO4→2C6H5COOH+15K2SO4+30MnSO4+64H2O+26CO2 3) 5C6H5C2H5+12KMnO4+18H2SO4→5C6H5COOH+6K2SO4+12MnSO4+28H2O+5CO2 A) 1 B) 2 C) 3 D) 1 va 2 E) 2 va 3 Yüklə 105,24 Kb. Dostları ilə paylaş:
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