Kiruvchilar uchun kimyo fanidan

49. Elektroliz faraday bo’yicha.
1. Birinchi elektrolizerda 2 mol, ikkinchisida 3 mol mis(II) sulfat bo'lgan eritmalar orqali 5 faradey tok o'tganda katodlarda (inert elektrod) ajralib chiqqan moddalar massalarini (g) hisoblang.

A) 129, 160 B) 128, 128

C) 192,192 D) 130, 192

2. Birinehi elektrolizerda 1,5 mol, ikkinchisida 2,5 mol mis(ll) sulfat bo'lgan eritmalar orqali 5 faradey tok o'tganda katodlarda ajralib chiqqan moddalar massalarini (g) aniqlang.

A) 96; 160 B) 160; 160 C) 98; 160 D) 64; 64

3. Birinchi elektrolizerda 1 mol, ikkinchisida 2 mol kumush nitrat bo'lgan eritmalar orqali 4 faradey tok otganda katodlarda (inert elektrod) ajralib chiqqan moddalar massalarini (g) hisoblang.

A) 432, 432 B) 108,216

C) 216, 216 D) 111, 218

4. Birinchi elektrolizerda 2 mol, ikkinchisida 4 mol natriy xlorid bo'lgan eritmalar orqali 4 faradey tok o'tganda anodlarda (inert elektrod) ajralib chiqqan moddalar massalarini (g) hisoblang.

A) 142, 142 B) 71, 142

C) 87, 142 D) 71,71

5. Birinchi elektrolizerda 2 mol, ikkinchisida 3 mol mis(II) sulfat bo'lgan eritmalar orqali 6 faradey tok otganda katodlarda (inert elektrod) ajralib chiqqan moddalar massaiarini (g) hisoblang.

A) 128, 192 B) 192, 192

C) 130, 192 D) 128, 128

6. 1 – elektrolizerda 2 mol, 2-sida 3 mol CdSO₄ bo`lgan eritmada orqali 5 F tok o`tkanda katodlarda ajralib chiqqan moddalar massalarini aniqlang.

A) 225; 280 B) 224; 280

C) 224; 336 D) 112; 168

7. 1 – elektrolizerda 1 mol, 2-sida 2 mol CdSO₄ bo`lgan eritmalar orqali 3 F o`tganda katodlarda ajralib chiqqan moddalar massalarini aniqlang.

A) 112; 224 B) 112; 168

C) 113; 336 D) 113; 168

8. 1 – elektrolizerda 2 mol, 2-sida 3 mol NaCl eritmasi bor. Ular orqali 3 F o`tganda ajralib gazlar hajmini aniqlang.

A) 22,4; 33,6 B) 33,6; 33,6

C) 28; 336 D) 39,2; 33,6