kunlik 12

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bahromiddin murodov +998774922000 kayfiyat test. [23.10.2025] 1.znbr2 tuzining eritmadagi gidroliz jarayonini oldini olish uchun quyidagi amallardan nechtasini bajarish lozim? a) eritmani suyultirish; b) eritmaga hbr qo‘shish; c) eritmaga naoh qo‘shish; d) haroratni ko‘tarish; e) eritmaga znbr2 qo‘shish; f) erituvchini bug‘latish a) 4 b) 2 c) 5 d) 3 2. jadval asosida x moddani aniqlang. ag massasi; (g) brom massasi; (g) x modda massasi y y-14 y-12 a) s b) hno3 (s) c) j2 d) cl2 3. ayni moddaning 30% va 45% li eritmalar qanday massa nisbatda aralashtirilganda 40% li eritma hosil bo‘ladi? a) 1:2 b) 2:1 c) 3:1 d) 1:1 4. a) -3 b) +2 c) +3 d) 0 5. tarkibida umumiy bog‘lar soni 22 ga teng bo‘lgan birikmani aniqlang. a) al(oh)so4 b) [al(oh)2]2so4 c) [al(oh)]3(po4)2 d) [al(oh)2]3po4 6. moslikni aniqlang. x metalining valentligi 1. bir valentli 2. ikki valentli 3. uch valentli moddalar a. xal(so4)2 b. x2o3 c. xhpo4 …

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- a; 2 - b; 3 - b; 4 – b c) 1 - b; 2 - b; 3 - b; 4 – b d) 1 - b; 2 - c; 3 - b; 4 -a 11. poh va ph ayirmasi 2 ga teng bo’lsa,ph ni aniqlang a) 10 b) 6 c) 8 d) 5 12. oddiy sharoitda moddalarning agregat holatini ko‘rsating. 1. xl or 2. olm os 3. simo b 4. bro m 5. kislor od 6. temi r qattiq suyuq gaz a) 2, 6 3, 4 1, 5 b) 3, 6 3, 4 1, 5 c) 1, 4 2, 5 3, 6 d) 2, 5 3, 4 1, 6 13. qaysi vositalar kaliy sulfid gidrolizini bahromiddin murodov +998774922000 kuchaytiradi? 1) suv qo‘shish; 2) kaliy sulfid qo‘shish; 3) temperaturani oshirish; 4) temperaturani kamaytirish; 5) ishqor qo‘shish; 6) kislota qo‘shish. a) 1, 3, 5 b) 1, 3, 6 c) 2, …

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bahromiddin murodov +998774922000 kayfiyat test. [23.10.2025] 1.znbr2 tuzining eritmadagi gidroliz jarayonini oldini olish uchun quyidagi amallardan nechtasini bajarish lozim? a) eritmani suyultirish; b) eritmaga hbr qo‘shish; c) eritmaga naoh qo‘shish; d) haroratni ko‘tarish; e) eritmaga znbr2 qo‘shish; f) erituvchini bug‘latish a) 4 b) 2 c) 5 d) 3 2. jadval asosida x moddani aniqlang. ag massasi; (g) brom massasi; (g) x modda massasi y y-14 y-12 a) s b) hno3 (s) c) j2 d) cl2 3. ayni moddaning 30% va 45% li eritmalar qanday massa nisbatda aralashtirilganda 40% li eritma hosil bo‘ladi? a) 1:2 b) 2:1 c) 3:1 d) 1:1 4. a) -3 b) +2 c) +3 d) 0 5. tarkibida umumiy bog‘lar soni 22 ga teng bo‘lgan birikmani aniqlang. …

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