I. Alkanlar bobi. Alkanlarning nomenklaturasi

7. Bog’lar soni bo’yicha alkanni aniqlash.
1. Agar alkan tarkibidagi uglerod-uglerod bog`lar soni uglerod-vodorod bog`lar sonidan 9 taga ko’p bo`lsa, alkanni toping.

A) butan B) geksan C) oktan D) geptan

2. Agar alkan tarkibidagi uglerod-uglerod bog`lar soni uglerod-vodorod bog`lar sonidan beshtaga kam bo`lsa alkanni toping.

A) CH₄ B) C₂H₆ C) C₃H₈ D) C₂H₄

3. Agar alkan tarkibidagi C – C bog`lar soni umumiy bog`larning 23 % ini tashkil etsa alkanni toping.

A) C₂H₆ B) C₃H₈ C) C₄H₁₀ D) C₅H₁₂

4. Agar alkan tarkibidagi uglerod-uglerod bog`lar soni uglerod-vodorod bog`lar soni to’rttaga ko`p bo`lsa, alkanni toping.

A) metan B) etan C) propan D) pentan

5. Agar alkan tarkibidagi uglerod-uglerod bog`lar soni uglerod-vodorod bog`lar soni ettitaga ko`p bo`lsa alkanni toping.

A) butan B) pentan C) geksan D) geptan

6. Agar alkan tarkibidagi uglerod-uglerod bog`lar soni uglerod-vodorod bog`lar nisbati 1:3 bo`lsa alkanni toping.

A) etan B) propan C) butan D) pentan

7. Agar alkan tarkibidagi C – C bog`lar soni umumiy bog`larni 25 % ini tashkil etsa alkanni toping.

A) etan B) propan C) butan D) pentan

8. Agar alkan tarkibidagi uglerod-uglerod bog`lar soni uglerod-vodorod bog`lar soni yig`indisi 31 ga teng bo`lsa alkanni toping.

A) C₈H₁₈ B) C₁₀H₂₂ C) C₁₂H₂₆ D) C₁₄H₃₀

9. Agar alkan tarkibidagi 3 ta sp³ gibridlangan markaz mavjud bo`lsa, undagi bog`larning necha foizini C – C bog`lari tashkil etadi.

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

10. Agar alkan tarkibidagi uglerod-uglerod bog`lar soni uglerod-vodorod bog`lari sonidan 10 ta kam bo`lsa, alkanni aniqlang.

A) C₇H₁₆ B) C₆H₁₄ C) C₅H₁₂ D) C₄H₁₀