Alkanlarning dastlabki ta vakilini izomerlarini yozib: a nechtadan izomeri borligini aniqlang, b sistematik,ratsional nomlang c geksan izomerlaridagi 1lamchi, 2lamchi, 3lamchi va 4lamchi uglerodlar sonini toping 2

7. 2-metilpropanning nechta dixlorli hosilalari bo’lishi mumkin? A) 2 B) 1 C) 3 D) 4 E) 5
8. 2,2-dimetilpropanning nechta monoxlorli hosilasi bo’ladi? A) 1 B) 2 C) 3 D) 4 E) 5
9. n-pentanning nechta monogaloidli hosilalari bo’lishi mumkin?A) 1 B) 2 C) 3 D) 4 E) 5
10.Geksan nechta izomerga ega bo’ladi? A) 1 B) 2 C) 3 D) 4 E) 5
11.Qaysi birikmalar alkanlarning gomologlari hisoblanadi?1) etan 2) etilen 3) propen 4) propan
A) 1 B) 2 C) 1 va 4 D) 2 va 3 E) 3 va 4
12.2-metilbutan, pentan va 2,2-dimetilpropan birikmalari qaysi turdagi izomeriyaga kiradi?
A) zanjir B) qo’sh bog’ning holati C) uch bog’ning holati D) funksional guruhning holat E) fazoviy
13.Izomer moddalar uchun quyidagi javoblarning qaysilari to’g’ri:
1) sifat tarkibi; 2) miqdor tarkibi; 3) molekulyar massasi; 4) kimyoviy tuzilishi 5) kimyoviy xossalari
A) 1 va 5 har xil; 2,3 va 4 bir xil B) 1,3 va 4 bir xil; 2 va 5 har xil
C) 1,3 va 5 har xil; 2 va 4 bir xil D) 1,2 va 3 bir xil; 4 va 5 har xil
E) 1,4 va 5 bir xil; 2 va 3 har xil
14.Quyidagi moddalar orasidan izomerlarni tanlang.
1) CH₃CH(CH₃)CH₂CH₃ 2) CH₃C(CH₃)₂(CH₂)₂CH₃ 3) CH₃CH(CH₃)(CH₂)₂CH₃ 4) CH₃CH(CH₃)CH(CH₃)CH₃ 5) CH₃C(CH₃)₂CH₂CH₃ 6) CH₃C(CH₃)₃
A) 2,3,4; 1,5 B) 2,3,4; 1,6 C) 2,4,6; 1,5 D) 3,4,5; 1,6 E) 1,4,6; 3,5
15.Alkanlarning kreking jarayonini quyidagi tenglama bilan ifodalanadi:
C_nH_2n+2 → C_mH_2m+2 + C_pH_2p n=6 bo’lsa, m va p lar qanday qiymatlarga ega bo’lishi mumkin?
A) m = 1,2,3,4; p = 5,4,3,2 B) m = 1,2,4,5; p = 5,4,2,1 C) m = 2,4,5,6; p = 4,2,1,6
D) m = 1,3,4,5; p = 5,3,2,1 E) m = 2,3,4,5; p = 4,3,2,1
16.Alkanlarning kreking jarayonini quyidagi tenglama bilan ifodalash mumkin:
C_nH_2n+2 → C_mH_2m+2 + C_pH_2p Agar n=4 bo’lsa, kreking natijasida qanday uglevodorodlar hosil bo’lishi mumkin?
A) metan, propen, etan, etilen B) etan, propen, butin, metan
C) metan, etan, propen, penten D) etan, propen, buten, etilen
E) metan, propen, etan, propan
17. Alkanlarning kreking jarayoni quyidagi tenglama bilan ifodalanadi: CnH_2n+2 → CmH_{2 m+2} + C_pH_2p. Agar n= 8 bo`lsa m va p larni qiymatlarini toping.
A) m = 1,2,3,4,5,6; p = 7,6,5,4,3,2 B) m = 2,3,4,5,6; p = 6,5,4,3,2
C) m = 2,3,4,1,6,7; p = 7,6,5,4,3,2 D) m = 1,2,3,4,5; p = 6,5,4,3,2