One of the ingredients on a margarine container is listed as \"polyunsaturated c
ID: 532553 • Letter: O
Question
One of the ingredients on a margarine container is listed as "polyunsaturated corn oil." This means that a) all the carbon bonds in the oil are single bonds. b) many of the polymer bonds are unsaturated. c) all the carbon-carbon bonds are triple bonds. d) many of the carbon-carbon bonds are multiple bonds. e) none of these Which of the following pairs is incorrect? a) ethane - C_2 H_6 b) hexane - C_6 H_14 c) decane - C_10 H_22 d) heptane - C_7 H_16 e) nonane - C_9H_18 Which of the following pairs is incorrect? a) CH_3 - methyl b) CH_2CH_2CH_3 - isopropyl c) CH_2CH_3 - ethyl d) CH_2CH_2CH_3 - propyl e) CH_2CH_2CH_2CH_3 - butyl In chemical reactions involving alkanes, halogen atoms can replace hydrogen atoms. These reactions are called a) combustion reactions. b) dehydrogenation reactions. c) substitution reactions. d) addition reactions. e) hydrogen reactions. In chemical reactions involving alkenes and alkynes, pi bonds can be broken and replaced with sigma bonds. These reactions are called a) combustion reactions. b) dehydrogenation reactions. c) substitution reactions. d) addition reactions. e) polymerization reactions.Explanation / Answer
6. The unsaturated means the compound contains unsaturated bonds (double or triple bonds). And we say polyunsaturated oil it must contains two or more unsaturated compound. So answer is b.
7. Alkane have genral formula (CnH2n+2) where n is number of carbon atoms. Options are all alkanes. Therefore incorrect pair which does not follow the above genral formula is e. nonane (C9H18). Nonane's corrct formula is C9H20. Answer is e.
8. Incorrect pair is -CH3CH2CH3 isopropyl. As in this one methyl group should be on second carbon atom/ Answer is b.
9. The replacement of hydrogens by halogen in alkanes is called as substitution reaction. So, answer is c.
10. The ractions which break the pi bonds in alkenes and alkynes and forms sigma bonds are called addition reactions. Answer is d.
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