Billur shisha tayyorlashda qanday xom ashyolardan foydalaniladi? 1) kr

A) 1,2, 3

9. (98-9-48) Billur shisha tayyorlashda qanday xom ashyolardan foydalaniladi? 1) kremniy (IV) oksid; 2) potash; 3) kalsiy karbonat; 4) natriy karbonat; 5) kobalt (II) oksid; 6) qorgoshin (II) oksid. * A) 1,2, 3 B) 1, 3; 5 C)1,2, 6
D) 2, 4, 6
E) 2, 3, 6