Kimyoviy bog‘lanish

01-4son-45.
84. Kuchi 3 A bo‘lgan tok 40 min. davomida kumush nitrat eritmasidan o‘tkazilganda, katodda qancha (g) kumush ajralib chiqadi?
A) 8,06 B) 28,02 C) 16,10 D) 4,03 E) 18,05
01-4son-46.
85. Kuchi 5 A bo‘lgan tok 15 min davomida kalsiy xlorid suyuqlanmasidan o‘tkazilganda, qancha miqdor (g) kalsiy xlorid parchalanadi?
A) 9,3 B) 0,93 C) 0,83 D) 4,3 E) 2,6
01-4son-47.
86. Kuchi 15 A bo‘lgan tok 15 min davomida mis(II) xlorid eritmasidan o‘tkazilganda, qancha (l) xlor ajraladi?
A) 2,24 B) 1,9 C) 1,57 D) 1,30 E) 4,7
01-4son-48.
87. Kumush nitrat eritmasidan massasi 6,72 g bo‘lgan kumushni ajratib olish uchun 18 A kuchga ega bo‘lgan tokni eritmadan qancha vaqt (C) davomida o‘tkazish kerak?
A) 500,4 B) 193,2 C) 931,8 D) 913,0 E) 333,6
01-4son-49.
88. Qo‘rg‘oshin(II) xlorid suyuqlanmasidan katodda 15 g qo‘rg‘oshin ajralib chiqishi uchun kuchi 2,75 A bo‘lgan tokni necha soat davomida o‘tkazish kerak?
A) 1,41 B) 2,15 C) 2,51 D) 1,52 E) 2,85
01-4son-50.
89. 10 g o‘yuvchi natriy olish uchun osh tuzi eritmasidan kuchi 2,2 A bo‘lgan tokni necha soat davomida o‘tkazish kerak?
A) 14,8 B) 15,8 C) 3,82 D) 4,79 E) 3,05
01-4son-51.
90. Kadmiy sulfat eritmasidan katodda 3,36 g kadmiy ajralib chiqishi uchun kuchi 1,08 A ga teng bo‘lgan tokni necha soat davomida o‘tkazish kerak?
A) 4,46 B) 6,45 C) 4,86 D) 1,49 E) 3,93
01-4son-52.
91. Tok kuchi 8 A ga teng bo‘lganda, 2 mol suvni parchalashga qancha vaqt (soat) kerak bo‘ladi?
A) 4,48 B) 35,74 C) 29,6 D) 33,6 E) 13,4
01-4son-53.
92. 8 minut davomida xrom(II) nitrat eritmasi elektroliz qilinganda, katodda 1,56 g xrom ajralgan bo‘lsa, tok kuchini toping?
A) 6 B) 18,1 C) 14,4 D) 13,6 E) 12,1
01-4son-54.
93. 45 minut davomida katodda 15 g mis ajralishi uchun mis(II) sulfat eritmasi orqali o‘tkazilishi lozim bo‘lgan tokning kuchini hisoblang?
A) 15,92 B) 15,50 C) 16,8 D) 5,84 E) 5,66