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ERITMA KONSENTRATSIYASINI ANIQLASH USULLARI

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University

27 Questions

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ERITMA KONSENTRATSIYASINI ANIQLASH USULLARI
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1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Moddalar asosan qanday agregat holatlarni ko’rsating:

Suyuq, qattiq, gaz, plazmatik
To'yingan, to'yinmagan va o’ta to’yingan
Konsentrlangan, ajralgan
Kolloid, haqiqiy

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Quyidagilardan qaysi biri molyar kontsentratsiyaga to’g’ri keladi?

1 litr eritmada mol miqdor erigan eritmaga.
Massa komponentining eritmaning massasiga nisbati.
Komponentning aralashmaning hajmiga nisbati.
Bir mililitr eritmadagi grammlar soni.

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Eritma titrining nima aytiladi?

1ml eritmadagi erigan moddaning grammdagi massasi.
1ml solventida mavjud bo'lgan grammdagi moddalarning massasi.
1 litl eritmada mavjud bo'lgan milligrammdagi moddalarning massasi.
1 litr eritmada mavjud bo'lgan moddaning ekvivalent miqdori.

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Neytrallash usulida qanday ko'rsatkichlar ishlatiladi?

Kislota-asos ko'rsatkichlar
Metall ko'rsatkichlar.
Redoks ko'rsatkichlari.
Tashqi ko'rsatkichlar.

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Titrlash jarayonida indikator rangi keskin o’zgaradigan holat bu ?

+Titrlashning oxirgi nuqtasi
Doimiy ko'rsatkich.
O'tish titrlash.
Neytrallanish nuqtasi.

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Oshqozon suvi ichidagi xlorid kislotasining tarkibini aniqlash uchun qaysi usuldan foydalanish kerak:

Alkalimetriya Atsidimetriya;
Mora Usuli;
Yodsiz kislota-asosiy titrlash;
Murakkab titrlash.

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Titrlash uchun ishlatiladigan konsentratsiyasi aniq bo’lgan eritma nima deyiladi ?

Ishchi yoki Titrant.
Ingibitor.
ishchialikvot.
Indikator.

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