21.02.2026 sertifikat 1-smena_033000
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ergashev javlon +998(88) 097-97-98 +998 (88) 909-90-40 t.me//kimyo1505 t.me//javlon_ergashev @kimyo1505 1. 20g so3 ga 80g suv va necha foizli eritma olindi? a) 20 b) 24,5 c) 49 d) 40 2. suvga nima qo'shilganda muzlash tempuraturasi pasayadi.(p=kons) a)sovuq suv b) muz bo'lagi c) issiq suv d)osh tuzi 3. quyidagilarning qaysi birida oltingurgurt massa ulushi xato ko'rsatilgan. a)mr=96....ws=1/3 b)mr=98....ws=16/49 c)mr=126....ws=16/63 d)mr=120....ws=1/6 4. qaysi elementning qo'zalmagan holatda toq elektronlaei 3ta a)mishyak b)temir c)kaliy d)xlor 5. quyidagilarning qaysi biri to'gri 1)cs2, sf6,fcl,ccl4 molekulalarida fcl eng qutubli 2)h2o molekulasiga nisbatdan h2s barqaror 3)keton tarkibida vadarod bog' bor 4)benzol tarkibidagi barcha uglerodlar sp² gibridlangan a) 1,2 b) 2,3 c) 1,4 d) 3,4 ...
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