Kimyo fаnidаn tеsti 6,5 gr vinil аldеgid kmnО

35. Bob Ekvivalentlikka oid
1.Berilgan moddalarni ekvivalentligini toping?
A) CaO, MgO, Na₂O, Al₂O₃, B₂O₃, H₂O₂, RuO₄, Fe₃O₄, Mn₃O₄,
P₂O₃, CO, CO₂, BaO₂, K₂O₂, SO₃

B) KOH, NaOH, Ca(OH)₂, Ba(OH)₂, Al (OH)₂, Sn(OH)₂, Mn(OH)₂, Fe(OH)₂,

C) HCl, HBr, H₂Te, H₂S, HEN HCSN, H₂SO₄, H₂CO₃, H₂SeO₄, H₃PO₂,

H₃PO₃, H₃PO₄, H₃AsO₄, H₄P₂O₇, H₅JO₆, HClO₄

D) K₂SO₄, Na₂CO₃, Li₂SO₃, KH₂PO₄, K₂HPO4, K₃PO₄, KHSO₄, Ca(HCO₃)₂,

CaHPO₄, MgOHCl, (NH₄)₂SO₄, NH₄HSO₄
36.Bob Aralashmalar
1. 13,9 gr Fe va Al aralashmasida 4,1538*10 ²⁴ elektron bo’lsa aralashmadagi metallarni massasini toping?
A)5,4 gr Al 8,5gr Fe B) 2,7 gr Al 11,2 gr Fe
C)3,9gr Al 10 gr Fe D)4, 2 gr Al 9,7 gr Fe
2. 15,2 gr kislarod va azot aralashmasi 11,2 litr keladi aralashmadagi gazlarni hajmiy ulushlari hisoblang?
A)40% 60% B)25⁰ 6 75% C)60% 40% D)75% 25%
3. Mg va Al dan iborat 1 gr qotishmaga suyultirilgan sulfat kislota tasir ettirilganda 1,15 litr (n sh) da gaz ajraldi qotishma tarkibida necha gr dan metall bo’lgan?
A)0,294 gr Mg 0,706 gr Al B) 0,4 gr Mg 0,6 gr Al
C) 0,375 gr Mg 0,625 gr Al D) 0,2 gr Mg 0,8 gr Al
4. 0,3 mol N va K aralashmasi suvda eritilganda 3,36 litr (n sh) gaz ajraldi aralashma massasini toping?
A)10,1gr B)20,2 gr C)30,3 gr D)5,5 gr
5. 21,2 gr Cr va Al aralashmasiga ishqor tasir ettirilganida 15,68 litr gaz ajraldi aralashma tarkibini toping?
A)8,944gr 12,256 gr Al B) 10,4gr Cr 10,8gr Al C)10gr Cr 11,2 gr Al D)9gr Cr 12,2 gr Al