Iv. Aromatik uglevodorodlar bobi. (Arenlar). Arenlarning gomologlariga oid

4. Fenolni bromlashga oid -3
1. 112,8 g fenolning bromli suv bilan reaksiyasida 2-bromfenol, 4-bromfenol va 2,4,6-tribromfenollar 1:2:3 mol nisbatda hosil bo'lsa, reaksiyada sarflangan brom massasini (g) toping.

A) 192 B) 384 C) 448 D) 240

2. 1,2 mo`l fenolni bromli suv bilan reaksiyasida 2-bromfenol, 4-bromfenol va 2,4,6-tribromfenollar 1:2:3 mo`l nisbatda hosil bo`lsa, reaksiyada sarflangan brom massasini (g) toping.

A) 384 B) 38,4 C) 192 D) 240

3. 11,28 g fenol va bromli suv orasidagi reaksiyada 2-bromfenol, 4-bromfenol va 2, 4,6-tribromfenollar 1:2:3 mo`l nisbatda hosil bo`lsa, reaksiyada sarflangan brom massasi (g) aniqlang.

A) 19,2 B) 38,4 C) 44,8 D) 24,0

4. 94 g fenol bromli suv bilan reaksiyada 2-bromfenol, 4-bromfenol, 2,4,6-tribromfenollar 1:2:3 mo`l nisbatda hosil bo`lsa, reaksiya uchun sarflangan brom massasini (g) aniqlang.

A) 320 B) 32 C) 3,2 D) 325

5. 2 mo`l fenol eritmasi bilan bromli suv reaksiyasida 2-bromfenol, 4-bromfenol va 2,4,6-tribromfenollar 1:2:3 mo`l nisbatda hosil bo`lsa, reaksiya uchun olingan brom massasini (kg) da aniqlang.

A) 6,4 B) 64 C) 32 D) 0,64

6. 18,8 g fenol va bromli suv orasidagi reaksiyada 2-bromfenol, 4-bromfenol va 2,4,6-tribromfenollar 1:2:3 mo`l nisbatda hosil bo`lsa, reaksiyaga kirishgan brom massasini (g) aniqlang.

A) 65 B) 63 C) 32 D) 64

7. 0,2 mo`l fenol va bromli suv orasidagi reaksiyada 2-bromfenol, 4-bromfenol va 2,4,6-tribromfenollar 1:3:4 mo`l nisbatda hosil bo`lsa, reaksiyaga kirishgan brom massasini (g) aniqlang.

A) 64 B) 6,4 C) 6,2 D) 32

8. 4,7 g fenol bromli suv bilan reaksiyaga kirishganda 2-bromfenol, 4-bromfenol, 2,4,6-tribromfenollar 1:3:4 mo`l nisbatda hosil bo`lsa, reaksiya uchun sarflangan brom massasini (g) toping.

A) 8 B) 16 C) 32 D) 14

9. 112,8 g fenolni bromli suv bilan reaksiyasida hosil bo`lgan moddalar 2-bromfenol, 4-bromfenol, 2,4,6-tribromfenollar 1:3:4 kabi mo`l nisbatda bo`lsa, reaksiyaga kirishgan bromni miqdori (mo`l) aniqlang.

A) 2,4 B) 1,2 C) 3,6 D) 1,4

10. Bromli suv bilan 47 g fenol reaksiyaga kirishib 2-bromfenol, 4-bromfenol va 2,4,6-tribromfenollar 1:3:4 mo`l nisbatda hosil bo`lsa, reaksiya uchun sarflangan brom atomlari sonini toping.

A) 12,04∙10²³ B) 12,04∙10²² C) 1,204∙10²³ D) 12,04∙10¹⁹