Rta maxsus ta’lim vazirligi guliston davlat universiteti

74.IV-gurux kationlari katorini kursating?
*Рb²⁺, Sn2²⁺, Аl³⁺, Cr³⁺
Cа²⁺, Cu²⁺, Cd²⁺, Sn²⁺
Аl³⁺, Cr3+, Hg²⁺, Cd²⁺
Hg²⁺, Cо²⁺, Нg³⁺, Cd³⁺,
75.Reaktivlardan kaysi biri IV-gurux reagenti buladi?
*CаS
Na₂S
Al₂S₃
(NH₄)₂S
76.Moddalarning kaysi biri III-guruxning umumiy chuktiruvchi bula oladi?
*(NH₄)₂S
H₂S
FeS,
BiS₃
77.Kationlar necha guruxga bulinadi?
*5
3
4
6
78.Anionlar necha guruxga bulinadi?
*3
5
4
2
79.I-gurux anionlarini toping?
*S₂O₃^2- SО₃^2- SО₄^2- BО^2-
SO₃^2-, J^-, Cl^- , SО₄^2-
NО₂ ,CH₃COOH^-, SО₄^2-
PO₄^3-, SO₄^2-, Br^-, F^-.
80.II-gurux anionlarini umumiy chuktiruvchisini kursating?
* BаCl₂
АgNО₃
NH₄NO₃
Cа(NО)₂
81.II-gurux anionlarini kursating?
* Br^-, S₂O₃^2-, SiO₃^2-
SO₃^2-, CO₃^2-,PO₄^3-
SO₄^2- , NО₂, J-,
Cl-, ClО^-, NО^3-
82.I SO₄^2- anionini aniklovchi asosiy reagentini kursating.
*BаCl₂,
АgNО₃,
NаNО₃
Аl (NО)₃
83.Mg²⁺ kationini ochishning asosiy reaktivini kursating?
*АlCl₃
Cа₃ (PО₄)₂,
Cа(NО₃)₂
(NH₄ )₃ PО₄,
84.Eksikator nima maksadda ishlatiladi?
*moddalarni kuruk, toza saklash va kuritish uchun
moddalarni kuydirishda
moddalarni saklashda
idishlarnikuritishda
85.Sn⁴⁺ kationining asosiy ochish reagentini kursating?
*Bi(ОH)₃
NaOH
NH₄OH
Аl(ОH)₃
86.CH₃COOH^- anionining asosiy ochish reaktini kursating?
*HCl
HNО3
H₂SО₄
H₃PО₄
87.NO^2- anionining asosiy ochish reaktivini ko’rsating?
*К₂SiО3
K₂CO₃
КNО₂
H₂SO₄
88.NO^3- anionining asosiy ochish reaktivini kursating?
*FеSО₄
Na₂SO₄
K₂CO₃
CаSО₄
89.Br^- anionining asosiy ochish reaktivini kursating?
*Cr₂O₃
КClО₃
МnО₂
K₂CrO₄
90.Quyidagi brom anionini aniklashdagi oksidlanish-kaytarilish reaktsiyasi tenglamasini umumiy koefitsientini toping?
КBr + K₂Cr₂O₇ + H₂SO₄( Br₂ + К2СО₃ + Cr (SО₄)₃ +H₂O
*26
25
27
28
91.J^- анионининг асосий очиш реактивини курсатинг?
*Pb(NО₃)₂
АgNО₃
NаNО₃
Cа(N0₃)₂
92.S^2-anioniningasosiyochishreaktivinikursating?
*H₂SО₄, HCl
HCООH, HBr
H₃PО₄, HJ
H₂SiО₃, HJ
93.SiO₃^2-anioniningasosiyochishreaktivinikursating?
*H₃PО₄
HNО₃
HNО₂
HCl
94.«Ho’l usul» bilan kilinadigan analizga kim asos solgan?
* Robert Boyl
Verner
Lavuaze
T. Bergman
95.Qaysi olimlarning ishlari tufayli mikrokristallokopik analiz vujudga keldi ?
* M. V. Lomonosov vaT. E. Lovits
Verner, Lavuaze
M. V. Lomonosov, T. Bergman
T. Bergman, T. E. Lovits
96.Tomchi usulining muallifi kim?
* N. A. Tananaev
Verner
Lavuaze
T. Bergman
97.Metallarni eritmalardan guruhlari bilan ajratish orkali kimlar tomonidan sistematik analiz vujudga keldi?
*T. Bergman
Verner
Lavuaze
Robert Boyl
98.Protolitik nazariyaning asoschilari kimlar?
*Brensted va Louri
Verner, Lavuaze
M. V. Lomonosov, T. Bergman
T. Bergman, T. E. Lovits
99.Ba va BaSO₄ ning kayta xisoblash faktori nimaga teng?
*1,230
0,5887
0,4470
2
100. Quyidagi brom anionini aniklashdagi oksidlanish-kaytarilish reaktsiyasi tenglamasini umumiy koefitsientini toping?
КBr + K₂Cr₂O₇ + H₂SO₄( Br₂ + К₂СО₃ + Cr (SО₄)₃ +H₂O
*26
25
27
28

1^Donald Ckoog,M. West. Fundamentals of Analytical Chemistry Brouks.Cole.Cengage, 2014.

2^Donald Ckoog,M. West. Fundamentals of Analytical Chemistry Brouks.Cole.Cengage, 2014.

3^Donald Ckoog,M. West. Fundamentals of Analytical Chemistry Brouks.Cole.Cengage, 2014.

4^Donald Ckoog,M. West. Fundamentals of Analytical Chemistry Brouks.Cole.Cengage, 2014.

5^Donald Ckoog,M. West. Fundamentals of Analytical Chemistry Brouks.Cole. Cengage, 2014