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18. Oltingugurt oksidlari boβlgan SO3 (a) va SO2 (b) dagi oltingugurtning ekvivalentligini mos ravishda aniqlang.
1) 16/3; 2) 6; 3) 12; 4) 8.
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1) 16/3; 2) 6; 3) 12; 4) 8.
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β€1