11 - sinf chsb-4 — uzb — 1-variant
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11 â sinf. chsb-4 1-variant1000002105094 1000002 1000002105094 emaktab 1000002105094 emaktab 1. (b) quyidagi reaksiyada oksidlovchi hisoblanuvchi moddani koê»rsating kmno4 + feso4 + h2so4 â fe2(so4)3 + mnso4 + k2so4 + h2o a) k2so4 b) feso4 c) h2so41000002105094 emaktab d) kmno4 2. (b) agno3 eritmasi elektroliz qilinganda katodda va anodda qanday moddalar ajralib chiqadi? a) katod â ag; anod â o2 b) katod â ag; anod â n2 c) katod â h2; anod â o2 d) katod â h2; anod â n2 3. (b) alcl3 suyuqlanmasi elektroliz qilinganda katodda va anodda qanday moddalar ajralib chiqadi?1000002105094 emaktab a) katod â h2; anod â cl2 b) katod â al; anod â cl2 c) katod â al; anod â o2 d) katod â h2; …
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