9-sinf-kimyo-3-v

iii-variant umumta’lim maktabining 2023-2024-o‘quv yili uchun kimyo fanini o‘zlashtirish darajasini aniqlash uchun test, savol, masala va topshiriqlar 9-___sinf o‘quvchisi ____________________________________ f.i.sh. o‘quvchi to‘plagan umumiy ball:_____ 1. xromning elektron konfiguratsiyasini toping. a) 1s2 2s2 2p6 3s2 3p6 3d3 4s2 b) 1s2 2s2 2p6 3s2 3p6 3d6 4s2 c) 1s2 2s2 2p6 3s2 3p6 3d10 4s1 d) 1s2 2s2 2p6 3s2 3p6 3d5 4s1 2. 16 g mis (ii)-sulfat eritmasiga 4,8 g temir qirindilari solindi. hosil bo‘lgan temir (ii)-sulfat massasini aniqlang. a) 5,8 b) 13 c) 19,8 d) 20 3. ionli bog‘lanish hosil qiladigan elementlar juftliklari berilgan qatorni aniqlang. [4,5 ball] 1) 1s22s22p63s1 2) 1s22s22p63s2 3) 1s22s22p63s23p6 4) 1s22s22p6 5) 1s22s22p63s23p5 a) 1-5, 2-5 b) 1-3, 1-4 c) 2-3, 4-5 d) 3-4, …

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