Analitik kimyo 3

Analitik kimyo 3

University

61 Qs

quiz-placeholder

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Analitik kimyo 3

Analitik kimyo 3

Assessment

Quiz

Chemistry

University

Medium

Created by

Ulmasbek Muminov

Used 1+ times

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61 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Miqdoriy taxlilda  oksidlanish-qaytarilish  reaksiyalarini qo‘llash uchun E.Yu.K.ning qiymati qanday bo’lishi kerak?

Istalgan qiymat  bo’lishi mumkin.

0,4-0,5 B dan kam bo’lmasin

0,4-0,5 B dan kup bo’lmasin.

0,1-0,2 B dan kam bo’lmasin.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Redoksimetrik qoldiqni titrlash mohiyatini ko’rsating?

Oksidlovchi-qaytariluvchini titrlash

Qaytaruvchi-oksidlovchini titrlash

Oksidlanish-qaytarilish reaksiyasiga sarf bo‘lgan birinchi titrant qoldig‘ini titrlash

Bir eritmani boshqa eritma bilan titrlash

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Oksidlanish-qaytarilish titrlashdagi  indikatorlarni xatoligi qanday sodir bo‘ladi?

Titrlanuvchi hajm bilan ta’sirlashaetgan modda konsentratsiyasini mos kelmasligidan.

Redoks juftni oksidlangan va qaytarilgan shakllari  konsentratsiyalari nisbatini mos kelmasligidan.

Titrlashni oxirgi  nuqtasini  ekvivalent nuqta bilan mos kelmasligidan.

Ta’sirlashayotgan redoks  juft  potensialini  indikatorni rang o‘zgarish intervali bilan mos kelmasligidan.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Redoksimetrik titrlash usullarining birida va alkalimetriyada standart sifatida ishlatiladigan moddani ko‘rsating?

Na2CO3*10H2O 

H2C2O4*2H2O

K2Cr2O7

Na2B4O7*10H2O     

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Aniqlanuvchi modda bo’yicha titr ta’rifini ko’rsating?

Berilgan normallikdagi titrantning 1sm3 iga to‘g‘ri  kelgan aniqlanuvchi moddaning grammlari soni

Titrlanuvchi eritma 1sm3 ning molyar konsentratsiyasi

Titrantning 1 dm3  eritmasidagi  titrlanuvchi moddaning grammlar soni

Titrlanuvchi eritmaning 1 sm3 dagi mollari soni

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nima uchun  kaliy  permanganatdan standart eritma tayyorlanmaydi?

Undan aniq tortim bo’yicha standart eritma tayyorlash  mumkin

Kuchli oksidlovchi  bo‘lgani  uchun  suvdagi  qaytaruvchilar ta’sirida konsentratsiyasini o‘zgartiradi

Kuchli oksidlovchi va gramm ekvivalentini o‘zgartirmaydi

Kuchli qaytaruvchi  va o‘zining gramm ekvivalentini o‘zgartiradi

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

H2C2O4*2H2O redoksimetriyaning qaysi usuli  uchun  standart eritma bo‘ladi?

Nitritometriya

Permanganatometriya

Atsidimetriya

Serimetriya

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