Xrom (III) nitrat eritmasiga soda yoki ammoniy sulfid eritmalari qoshi

A) 3


27. (05-1-216) Xrom (III) nitrat eritmasiga soda yoki ammoniy sulfid eritmalari qoshilganda, qanday chokmalar hosil boladi? 1) xrom (III) sulfat; 2) xrom (III) karbonat; 3) xrom (III) sulfid; 4) xrom (III) gidroksid; 5) xrom (III) gidrokarbonat. A) 3 B) 2, 3 C)1,5 D)4
E) 2, 4