@info_dtm kimyo-2

1.quyidagi mutanosiblikni toping ? a)birlamchi b) ikkilamchi c)uchlamchi d) to'rtlamchi uglerod atomlarining oksidlanish darajasi bilan juftlang. 1)-1 2)-2 3)-3 4)0 a) a-1, b-2, c-3, d-4 b) a-4, b-3, c-2, d-1 c) a-1, b-3, c-2, d-4 d) a-3, b-2, c-1, d-4 2. uratsilni sistematik nomenklatura bo’yicha nomini toping? a) 2, 4-dioksipirimidin b) 2-oksi-4-amimopirimidin c) 2,6-dioksipirimidin d) 5-metil-2,4-dioksipirimidin 3. 6,25 molyalli kaustik soda eritmasining molyar konsentratsiyasini toping? (p=1,2 gr/ml). a) 3 b) 8 c) 6 d) 5 4. qaysi elementning oxirgi 3 ta elektronining bosh, spin va magnit kvant sonlari yig'indisi elektronlarining to'lib borish tartibida 4,5. 1,5. va 2,5. ga teng? a)p b) s c) cl d) ar 5. quyidagi qatorda elementlarning nisbiy elektromanfiyligi qanday o‘zgaradi. 1. 2. 3. ...

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