7- sinf uchun Kimyodan test savollari

10 sinf

1. Alkanlarning umumiy formulasini toping.
A) CnH2n+2 B) CnH2n+1
C) CnH2n D) CnH2n-2
2. Metanning havo bilan qanday hajmiy nisbatdagi aralashmasi portlash bilan yonadi?
A) 1:1 B) 1:2 C) 1:4 D) 1:10
3. Metil yodid va etil yodid natriy metali bilan
ta’sirlashishi natijasida qanday moddalar hosil bo’ladi?
A) etan, propan, butan
B) metan, etan,propan
C) metan,propan,butan
D) propan,butan, pentan
4. Oktaning barcha izomerlaridagi uglerodning
oksidlanish darajasi yig’indisini toping?
A) -180 B) -320 C) -324 D) -18
5. Alkanlar katalizator ishtirokida temperatura va
yorug’lik ta’sirida qanday reaksiyaga kirishadi?
A) birikish B) parchalanish
C) almashimish D) o’rin olish
6. Metan qatori uglevodorodlarining qaysi vakilida umumiy bog’ soni bilan vodorod atomlari soni teng?
A) etan B) eykozan C) undekan D) metan
7. Dimetiletilmetanga xlor tasir ettirsak, qanday
monogalogenli hosila hosil bo’ladi?
A) 2-xlor 2-metil butan
B) 2-xlor 3-metil butan
C) 1-xlor 3-metil butan
D) 1-xlor 2-metil butan
8. Alkan molekulasidagi sp3-sp3 bog’ soni qaysi formula orqali ifodalanadi?
A) n+1 B) n C) n-1 D) (n-1)2
9. Aniq hajm va o’lchamga ega bo’lmagan (a), aniq hajm va o’lchamga ega bo’lgan(b), hajmga ega, ammo shaklga ega bo’lmagan (c) alkanlarni aniqlang.
A) a-metandan pentangacha; b-pentandan
geksadekangacha; c-geksadekandan yuqorilari
B) a-metandan pentangacha; b-geksadekandan yuqorilari; c-pentandan geksadekangacha
C) a-metandan geksangacha; b-geksandan
geksadekangacha; c-geksadekandan yuqorilari
D) a-metandan pentangacha; b- geksapentandan
yuqorilari; c-pentandan geksapentangacha
10. 2,2-dimetilpentanning struktur formulasi to’g’ri yozilgan qatorni ko’rsating.
A) CH3-CH(CH3)-CH2-CH3
B) CH3-CH(CH3)2-CH3
C) CH3-C(CH3)2-CH2-CH2-CH3
D) CH3-CH(CH3)-CH(CH3)-CH2-CH3