9-sinf kimyo
Test IV-chorak.
Kristall sodani formulasini toping: A) Na2CO3*10 H2O B) NaHCO3 C) Na2SO4* 10 H2O D) Na2CO3.
19.6 g sulfat kislotani miqdorini va shu miqdordagi kislorod atomlarini sonini toping. A) 2 mol; 48.16*1023 B) 0.2 mol 6.02*1023 C) 0.2 mol 1.206*1023 D) 0.1 mol 12*1023
Zichligi 2.86 g/l bo’lgan gazning molyar masaqsini hisoblab toping; A) 32 B) 48 C) 80 D) 64
Quyidagi o’zgarishlarni amalga oshirish uchun zarur moddalarni nva omillarni tanlang: CuSO4Cu(OH)2CuOCu A) NaOH, t0, H2 B) H2O,HCl,t0 C) H2SO4, NaOH,O2 D)H2O, K2O,CuO
Davrlarda chapdan o’ngga qanday xosalar ortib boradi? A) metallmaslik, atom radiusi, gidroksidlarda asoslik xossalar B) metallmaslik, elektromanfiylik, yadro zaryadi C) metallic, atom radiusi, elektrmanfiylik D) metallmaaslik yuqori oksidlarda valentlik atom radiusi
Cu+HNO3Cu(NO3)2+NO+H2O tenglamasidagi koeffisiyentlar yig’indisini toping. A) 20 B) 10 C) 22 D) 24
Gidrolizlanganda muhiti kislotali bo’lgan tuzlarni tanlang; A) AlCl3, MgSO4, Na2CO3 B) AlCl3, MgSO4, CuCl C) Na2CO3, NaCl, KNO3 D) BeSO4, BaCl2, Na2CO3
Xlorid kislota va xloridlarni aniqlash uchun ishlatiladigan reaktiv; A) AgCl; B) AgNO3; C) BaCl2; D)KNO3
Quyidagi metallardan nechtai xlorid kislotadan vodorodni siqib chiqaradi? Al, Cu, Mg, Ca, Na, Zn, Ag, Hg, A) 1 B) 2 C) 4 D) 5
Metal holatdagi natriyni oh tuzidan olish uchun sanoatda qaysi usul qo’llaniladi? A) alyuminatermiya B) CO yordamida qaytarish C) eritma elektrolizi D) suyuqlanma elektrolizi
Normal sharoitda hajmi 5.6 l bo’lgan to’yingan uglevadarodning masasi 11 g bo’lsa u qanday nomlanadi? A) metan B) propan C) etan D) butan
4 l propanni yoqish uchun qancha hajm kilarod talab etiladi ?(n.sh) A) 20 l B) 5 l C) 22.4 l D) 44.8 l
Atsetilen gomologik qatorining umumiy formulasini toping: A) CnH2n B) CnHn C) CnH2n-2 D) CnH2n+2
Metil spirtining yonish tenglamasi? CH3OH+ 2O2= CO2+ 2H2O+722.3kj 1 kg metil spirit yonganda qancha isiqlik ajraladi? A) 12600 B) 22571.2 C) 3200 D) 72230
Fotosintez jarayonida o’simlik 67.2 l CO2 ni yutganda qancha mol glukoza hosil bo’ladi? A) 0.24 B) 0.75 C) 0.5 D) 1
FeS2+O2=Fe2O3+ SO2 tenglamaga koeffitiyentlar qo’ying koeffitsiyentlar yig’indisini toping. A) 25 B) 20 C) 22 D) 26
Sulfatlarni aniqlovchi reagent? A) AgCl B) AgNO3 C) BaCl2 D) KNO3
SO2 ning ekvivalenti nechaga teng; A) 24 B) 32 C)16 D) 12
Spirtlarni umumiy formulasini yozing_______________________________________________
Metil, etil efirning formulasini yozing _______________________________________________
Izomeriya nima? ________________________________________________________
Tetroxlormetanning formulasi qanday? ______________________________________________
Nitrobenzolni olish formulasi _______________________________________________________
Sirka metil efirning formulasini yozing ________________________________________________
Eterifikatsiya reaksiyasi deb _____________________________________________________
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