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ORIYENTATSIYA QOIDASI

1-tur o'rinbosarlari : (orto va para holatga yo'naltiradi) -R, -CH2Hal, -CHHal2, -CHal3, -CH2OH, -CH2OR, -CH2NH2, -CH2NHR, -CH2NR2, -Hal, -OH, -OR, -NH2, -NHR, -NR2, -C2H3, -C2H va xk.

2-tur o'rinbosarlari: (meta holatga yo'naltiradi) -NO2, -COOH, -COOR, -CHO, -CRO, -CN, -SO2R, -SO2OR, -SO3H va xk.

Mustaqil yechish uchun savollar:

1. Tarkibi C9H12 bo’lgan aromatik
uglevodorod oksidlanganda
benzoldikarbon kislota, nitrolanganda
(H2SO4 ishtirokida) esa tarkibi
C9H11NO2 bo’lgan uchta izomer
aralashmasi olinsa, aromatik
uglevodorodni aniqilang (yon
zanjirning nitrolanishi hisobga
olinmasin).
1) 1-metil-2-etilbenzol;
2) 1-metil-4-etilbenzol;
3) 1-metil-3-etilbenzol;
4) izopropilbenzol.
A) 1,2,3 B) 2,4 C) 3 D) 1

Kanalimizga obuna bo'lish uchun:
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19 Dec 2023, 20:14

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VIDEO MARUZA

2-qism

Oksidlanish - Qaytarilish tenglamalari:

✅ Yarim reaksiya usuli

✅ Arifmetik usul

@Attestatsiya_kimyo_2022

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𝙆𝙄𝙈𝙔𝙊 𝙉𝙊𝙇𝘿𝘼𝙉||𝗜𝗻𝗼𝗺𝗷𝗼𝗻 𝗔𝗰𝗵𝗶𝗹𝗼𝘃

19 Dec 2023, 20:14

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VIDEO MARUZA

1-qism

Oksidlanish - Qaytarilish tenglamalari:

✅ Oksidlanish darajasi hisoblash
(3-xil usul)

✅ Oksidlovchi va Qaytaruvchilar

✅ OQR turlari

✅ Elektron balans usuli

davomi bor...

@Attestatsiya_kimyo_2022

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18 Dec 2023, 22:37

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1. E va F birikmalarning brutto formulasi
C4H8O2, E moddaning ishqoriy gidrolizida
ikkita organik modda G va H hosil bo’ldi.
G modda ishqor bilan qizdirilganda metan
hosil bo’ldi. H modda natriy metali bilan
ta’sirlashganda vodorod ajraldi. F modda
“kumush ko'zgu” reaksiyasiga kirishib
olingan I modda, kislotalar bilan ham,
spirtlar bilan ham murakkab efir hosil
qilishi mumkin bo’lsa, E va F lar qanday
moddalar bo’lishi mumkin?
1) CH3CH2COOCH3;
2) CH3COOCH2CH3;
3) СН3СООСН(СН3)СН3;
4) СН3СН(ОН)СН2СНО;
5) СН3С(О)СН2СН2ОН;
6) СН3С(СН)(ОH)СН2СНО.
А) Е = 2; 3 va F = 4; 6 В) Е = 2 va F = 4
С) Е = 1; 4 va F = 5; 6 D) Е = 4 va F = 6

Kanalimiz👇
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18 Dec 2023, 15:14

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Elektron ko'chish
S dan D ga va F dan D ga

S dan D ga:

1) Cr - 3d⁵4s¹
2) Cu - 3d¹⁰4s¹
3) Nb - 4d⁴5s¹
4) Mo - 5d⁵5s¹
5) Ru - 4d⁷5s¹
6) Rh - 4d⁸5s¹
7) Pd - 4d¹⁰5s⁰(2-ta ko'chish)
8) Ag - 4d¹⁰5s¹
9) Pt - 5d⁹6s¹
10) Au - 5d¹⁰6s¹

F dan D ga:

1) Ce - 4f¹5d¹
2) Gd - 4f⁷5d¹
3) Pa - 5f²6d¹
4) U - 5f³6d¹
5) Np - 5f⁴6d¹
6) Cm - 5f⁷6d¹
7) Bk - 5f⁸6d¹

Kanalimiz👇
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