Tiêu đề IUPAC.pdf ✅

1. How many  and  bond are present in ethylene : (a) 5  , 1  (b) 3  , 3  (c) 2  ,4  (d) 4  , 2  2. The number of  and  bonds in the following molecule is respectively : (a) 19  bonds, 6 bonds (b) 20  bonds, 5 bonds (c) 19  bonds, 5 bonds (d) 20  bonds, 6 bond 3. What is the nature of marked carbon atom in the following compounds ? (a) 3° carbon (b) 2° carbon (c) 4° carbon (d) 1° carbon 4. Find the number of 1°, 2° & 3° hydrogen atoms in the following compounds : (a) 1° H → 9, 3° H → 1 (b) 1°H → 6, 2°H → 2 (c) 1°H → 6, 2°H → 4 (d) 1°H → 9, 2°H → 1 5. The number of primary, secondary and tertiary carbons in the following structure are respectively : (a) 6,3,3 (b) 3,6,3 (c) 3,6,2 (d) 3,2,1 6. Which of the following compound has sp, sp2 and sp3 hybrid carbon atoms ? (a) (b) CH3 –CH=CH–CH=CH2 (c) CH3 –CC–CCH (d) CH2 =CH–CCH
7. The number of sp2–sp2 hybrid  bonds in the following compound is : (a) 3 (b) 4 (c) 5 (d) 6 8. The number of 1o carbon of following compound is (a) 5 (b) 6 (c) 8 (d) 4 9. Which type of hybridisation of each carbon have in the following compounds? (A) CH3 –Cl (B) (C) CH3 –CN (D) (A) (B) (C) (D) (a)sp3sp3 & sp2sp3 & sp2 sp (b)sp2sp3 & spsp3 & sp sp2 (c)sp3sp3 & sp2sp3 & sp sp2 (d)sp2sp3 & spsp3 & sp2 sp 10. Which is not the homologue of the propene. (a) Ethene (b) But-2-ene (c) Pent-1-ene (d) Cyclopropane 11. The alicyclic compound is : (a) Cyclohexane (b) Benzene (c) Pyrrole (d) Hexane 12. Identify the compound which is homocyclic, aromatic, and unsaturated? (a) (b) (c)
(d) 13. Secondary (2°) alcohol is : (a) (b) (c) (d) All of these 14. Which of the following is a primary alkyl halide ? (a) C6H5CHClCH3 (b) CH3CHClCH2CH3 (c) (CH3 ) 2CHCH2Cl (d) (CH3 ) 3CCl. 15. Identify the 3° amines? (a) (b) (c) (d) 16. The simplest tertiary amine has :- (a) 2 carbon (b) 3 carbon (c) 4 carbon (d) 5 carbon 17. The higher homologue of dimethylamine (CH3 –NH–CH3 ) has the structure :- (a) (b) CH3 –CH2 –CH2 –NH2 (c) CH3 –NH–CH2 –CH3 (d) 18. The minimum number of carbon atoms in an alkane having four primary carbon atoms are :- (a) 4 (b) 8 (c) 5 H Me N Me Me
(d) 6 19. A primary amine has amino group-(NH2 ) attached to :- (a) A primary carbon atom only (b) A secondary carbon atom only (c) A tertiary carbon atom only (d) A primary, secondary or tertiary carbon atom 20. The correct IUPAC name of the alkane is: (a) 2-Methyl propane (b) 2, 2-Dimethyl propane (c) 2-Methyl butane (d) 2, 2-Dimethyl butane 21. The correct IUPAC name of the alkane is : (a) 2-Ethyl-4-methylhexane (b) 5-Ethyl-3-methylhexane (c) 3,5-Dimethylheptane (d) 3,5-Dimethylhexane 22. IUPAC name of (CH3 ) 2CHCH(CH3 ) 2 is : (a) 2,2-Dimethylbutane (b) 2,3-Dimethylbutane (c) 2,4-Dimethylbutane (d) 1-Methylpentane 23. IUPAC name of following compound is : (a) 2-Chloro-3-methyl-7-bromoheptane (b) 7-Bromo-2-chloro-7-methylheptane (c) 1-Bromo-5-methyl-6-chloroheptane (d) 1-Bromo-6-chloro-5-methyl heptane 24. IUPAC name of tert-butyl chloride is : (a) 2–Chloro–2–methylbutane (b) Chlorobutane (c) 2–Chlorobutane (d) 2–Chloro–2–methylpropane 25. What is the correct chemical formula for 1,2–Dichloro tetrafluoroethane ? (a)