takrorlash testcha kichik guruhga_081433
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ergashev javlon +998(88) 097-97-98 +998 (88) 909-90-40 t.me//kimyo1505 t.me//javlon_ergashev takrorlash testcha 1. -73 0c da turgan gazning hajmi 20 litr keladi. temperaturani -173 0c ga ko’targan vaqtda idishning hajmi qanday bo’ladi ? (l) a) 20 b) 30 c) 25 d) 22 2. 303ok necha selsiy(oc). a) 30 b) 27 c) 17 d) 37 3. 31,6 g kaliy permanganat parchalanishidan 1344 ml (n.sh) gaz hosil bo‘lsa, reaksiya unumini (%) aniqlang. a) 30 b) 60 c) 50 d) 70 4. ikki valentli metallning 10,8 grami suv bilan reaksiyasi natijasida 0,45 mol vodorod ajralib chiqsa, shu metallni aniqlang. a) beriltiy b) magniy c) kalsiy d) stronsiy 5. ca(oh)2 va h2so4reaksiyasi natijasida jami necha xil tuz hosil bo’lishi mumkin? a) 2 b) 4 c) …
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