81e80c9945b2e6c2bbc708b0fc86e5a7
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kimyo fanidan namunaviy test topshiriqlari (ytest.uz) kimyo 1. [1,3 ball ] 112 l ozon-kislorod aralashmasi tarkibida ikki gazning elektronlar soni teng. aralashmadagi gazlarning massa nisbatini toping. a) 2:1 b) 1:1 c) 1:2 d) 1:1.5 2. [2,2 ball ] qaysi modda eritmasining (p=1.85 gr/l) foiz va molyar konsentratsiyalari nisbati 4:1 ga teng? a) koh b) h2so4 c) naoh d) ca(oh)2 3. [2,2 ball ] idishda 4.155 l azot tarkibidagi molekulalar soni 1.505 • 1023 ga teng, bosim 150 kpa bo’lsa, idishdagi haroratni toping.( c º) a) 27 b) 300 c) 23 d) 303 kimyo fanidan namunaviy test topshiriqlari (ytest.uz) 4. [1,3 ball ] as+3 ionining elektron konfiguratsiyasi berilgan qatorni aniqlang. a) . . . 4s0 4p4 b) . . . 3p6 …
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