Dtm sinoviga test Kimyo 1 – variant

DTM sinoviga test Kimyo

1 – variant

61. Metafosfat kislotaning massasini aniqlang.

A) 40 B) 80 C) 82 D) 66

62. MeBr₂ ∙ xH₂O tarkibida metall atomi metallmas atomlaridan 11 marta kam bo’lsa, x ni qiymatini toping.

A) 2 B) 4 C) 3 D) 5

63. Tarkibida 12 dona atom tutgan CH₄ gaziga 0,6 mol vodorod gazi qo’shildi. Hosil bo’lgan aralashmadagi CH₄ ning hajmiy ulushini (%) toping.

A) 80 B) 20 C) 60 D) 40

64. 5 molyalli temir (II) – nitrat eritmasida nitrat ionlarining massasi 124 gr bo’lsa, eritma massasini (g) aniqlang? (α=1)

A) 180 B) 200 C) 380 D) 190

65. 10 ˚C da 2 sekundda tugaydigan reaksiya temperature -10 ˚C gacha o’zgartirilganda necha sekundda tugaydi? (γ=4)

A) 16 B) 32 C) 8 D) 64

66. Bosh va orbital kvant sonlari ayirmasi 5 ga teng bo’lgan energetik pog’onachani belgilang.

A) 5s B) 5d C) 6d D) 6f

67. Quyidagi berilgan birikmalarda bog’ning qutbliligi qanday o’zgaradi?

NH₃ → CH₄ → H₂O → HF
a) ortadi; b) kamayadi.
A) 1-a; 2-b; 3-a B) 1-b; 2-a; 3-a
C) 1-b; 2-a; 3-b D) 1-b; 2-a; 3-b

68. Alyuminiy gidroksofosfat tarkibidagi:

a) s; b) p; c) sp; d) sp²; e) sp³;
g) sp² – orbital(lar)dagi harakatlanadigan elektronlar soni;
h) sp³ – orbital(lar)dagi harakatlanadigan elektronlar sonini aniqlang.
A) a=3, b=4, c=2, d=12, e=40, g=0, h=58
B) a=3, b=4, c=0, d=15, e=44, g=16, h=48
C) a=3, b=4, c=0, d=15, e=44, g=19, h=62
D) a=3, b=2, c=2, d=10, e=40, g=19, h=50

69. ( )reaksiya bo’yicha massa 10 birlikka kamaygan bo’lsa, y qiymatini aniqlang.

A) 2 B) 3 C) 4 D) 5

70. Na₂S₂O₃ tarkibidagi oltingugurt atomlarining oksidlanish darajalarini aniqlang.

A) +4 va -2 B) +4 va 0 C) +6 D) 0
71. xA_(g) + B_(g) ⇆ 2C_(g) reaksiya muvozanat holatiga kelganida moddalarning konsentratsiyalari [A] = 2 mol/l;[B] = 4 mol/l; [C] = 2 mol/l ga teng bo’lsa, x ni aniqlang. (K_M = )
A) 3 B) 4 C) 5 D) 2

72. Noma’lum massali eritmadagi tuzning massasi eritmaning massasidan ayirmasi 60 ga teng, eritmadagi suvning massasidan ayirmasi esa 20 ga teng bo‘lsa uning C% konsentratsiyasini aniqlang.

A) 60 B) 40 C) 30 D) 70

73. Cl₂ + H₂O → ….. ushbu reaksiyada 28,4 gr xlor nechta elektron olib qaytariladi?

(N_A – Avogadro soni)
A) 0,3 · N_A B) 2· N_A C) 0,8· N_A D) 0,6· N_A


74. Sxemaning quyi (a, b, c, d) katakchalariga
mos keluvchi moddalar to‘g‘ri ko‘rsatilgan
javobni belgilang.


A) a - KMnO₄; b - NaNO₃; c - (NH₄)₂CO₃;
d - NH₄Cl
B) a - AgNO₃; b - CaCO₃; c - NH₄NO₃;
d - NH₄Cl
C) a - HNO₃; b - NaHCO₃; c - (NH₄)₂CO₃;
d - (NH₄)₂Cr₂O₇
D) a - Cu(OH)₂; b - Ca(HCO₃)₂; c - NH₄NO₃;