
Analitik kimyo 2
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Medium
Ulmasbek Muminov
Used 1+ times
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77 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cr3+ uchun farmakopeya reaksiyasini ko’rsating?
Cr3++ 3OH-> Cr(OH)3
2Cr3++ 3H2O2 + 10OH -> 8H2O + 2CrO4-2 (sariq)
Cr (OH)3 + OH- > [Cr (OH)4 ]
2Cr3++ 3SO42- > Cr(SO4)3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
IV va V gurux kationlarini bir biridan ajratish ularni qanday xossasiga asoslangan?
IV gurux gidroksidlari ammiakda eriydi V gr gidroksidi erimaydi.
Mo’l ishqorda V gurux gidroksidlarini erishi IV gr gidroksidi erimasligi.
Mo’l ishqorda IV gurux gidroksidi erishi V gr gidroksidllarini erimasligi.
V gurux gidroksidlari ammiakda eriydi IV gr gidroksidi erimaydi.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5 va 6 gurux kationlari bir-biridan qanday reagent ta’sirida ajratiladi?
NaOH+H2O2
Mo‘l NH4OH(kons )
HCl
NH4Cl
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Analitik kimyoga asos solgan olim?
Lavuaze
Boyl
Lomonosov
Menshutkin
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oqsidlovchi (E0ox) va qaytaruvchi (E0 Red) standart potensiallari asosida elektr yurituvchi kuchini xisoblash?
EO ox+EORed
EOOx-EORed
EORed/EOOx
EOOx/EORed
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Selektiv xos reagentga xos ta’rifni ko’rsating?
Murakkab aralashmadagi ionni ochishga ishlatiladigan reaktiv
Murakkab aralashmada bir nechta ion bilan tashqi samara beradigan reagent
Ionlar guruxiga bir xil analitik samara bilan ta’sir etuvchi reagent
Faqat bitta ion bilan analitik samara beruvchi reagent
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ikki redoks juft E0 Fe+3/Fe+2=0,77 V ва E0Sn+4/Sn+2=0,15 V orasida oksidlanish qaytarilish reaksiyasi qaysi yo‘nalishda boradi?
2Fe+2+Sn+2=2Fe+3+Sn+4
2Fe+3+Sn+4=2Fe+2+2Sn+2
2Fe+3+Sn+2=2Fe+2+Sn+4
2Fe+2+Sn+4=2Fe+3+Sn+2
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