Oddiy va murakkab moddalar

60. Bertole tuzida xlorning oksidlanish darajasi nechaga teng?
A) -1 B) +2 C) +3 D) +5
61. Vodorod peroksidda vodorodning oksidlanish darajasi nechaga teng?
A) +1 B) +2 C) -1 D) -2
62. Xlor atomi uchun qanday oksidlanish darajalari xarakterli?
A) -1,0; B) -1,0,+1;
C) 0,+1,+2; D) -1,0,+1,+3,+5,+7.
63. Na₂B₄O₇ moddasida borning oksidlanish darajasini aniqlang.
A) 0 B) +1 C) +3 D) +2
64. Tarkibi K₂Cr₂O₇ bo’lgan molekuladagi elementlarning valentligi va oksidlanish darajasi yozilgan qatorni toping.
A) 1,3,2; +1,-3,-2; B) 2,6,2; +2,+2,-2;
C) 1,2,2; +1,+3,-2; D) 1,6,2; +1,+6,-2.
65. Ammoniy sulfat tarkibidagi azotning valentligi va oksidlanish darajasini ko’rsating.
A) 3,-4; B) 4,-4; C) 3,-3; D) 4,-3.
66. Galogenlar uchun (ftordan tashqari) qaysi oksidlanish darajalari mavjud?
A) +1,+3,+5; B) -1,+1,+3,+5,+7;
C) -1,+3,+5,+7; D) +1,+5,+7.
67. Birikmalarni xlor atomining oksidlanish darajasi kamayib borish tartibida joylashtiring.
1. HClO; 2. NaClO₃; 3. Cl₂; 4. SOCl₂;
5. KClO₄; 6. Mg(ClO₂)₂
A) 1.4.3.6.2.5; B) 4.3.1.6.2.5;
C) 5.2.6.1.3.4; D) 5.6.4.2.3.1.
68. Qaysi moddalar molekulasida markaziy atomning oksidlanish darajasi kattaroq?
1) CaCrO₄; 2) NH₄NO₃; 3) K₃[Fe(CN)₆];
4) Fe₂(SO₄)₃; 5) [Ag(NH₃)₂]OH; 6) Mn[PtF₆]
A) 1,4 B) 1,2 C) 4,6 D) 1,3
69. Oksidlanish darajasi va valentligi bir xil bo’lmagan atomlari bo’lgan molekulalarni tanlang.
1) NH₃; 2) SiO₂; 3) CO₂; 4) H₃PO₄; 5) NH₄Cl; 6) C₂H₆; 7) CO; 8) H₂SO₄; 9) N₂O; 10) HNO₃
A) 2,5,6,9,10; B) 5,6,7,9,10;
C) 1,5,7,8,9; D) 3,4,5,6,7.
70. Quyidagi birikmalarning qaysi birlarida azotning oksidlanish darajasi musbat qiymatga ega?
1. litiy nitrid; 2. bariy nitrid; 3. azot(II)oksid;
4. ammiak; 5. nitrit kislota; 6. azot (V) oksid;
A) 3,5,6; B) 1,2,6; C) 2,4,6; D) 1,3,5.