Tuman maktab 11 sinf o‘quvchisi
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11 sinf oraliq nazoart ishi
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Sana ____________
4- nazorat ishi. Yozma ish. 1. Elektroliz qonunlari _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2. Elektroliz tushunchasi. Eritma va suyuqlanma elektrolizi _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 3. 500 g 32% li CuSO4eritmasidan misni to‘liq ajratib olish uchun 5 A to‘k kuchini necha sekund davomida o‘tkazish kerak? _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 4. 500 g 23 % li K2CO3eritmasidan necha amper tok kuchini 4825 minut davomida o‘tkazilganda K2CO3 ning massa ulushi 50% ga teng bo‘ladi? _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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