please answer the questions.
10. The IUPAC name for is: A) 6-Ethyl-3.4-dimethy lheptane B) 2-Ethy1-4,5-dimethylheptane C) 3,4.6-Trimethyloctane D) 3,5,6-Trimethy loctane E) 2-(1 Methylpropyl)-4-methylhexane 11. What is a correct name for the following compound? A) 3-Isobutyl-2-methylheptane B) 3-sec-Butyl-2-methyloctane C) 5-Isobutyl-6-methylheptane D) 2-Ethyl-3-isopropyloctane E) 4-1sopropyl-3-methy Inonane 12. Provide a name for the following compound Br A) 2-Bromo-4-chloro-4-isopropylpentane B) 4-Bromo-2-chloro-2-isopropy lpentane C) 5-Bromo-3-chloro-2,3-dimethylhexane D) 2-Bromo-4-chloro-4,5-dimethylhexane E) 2-(2-Bromopropyl)-2-chloro-3-methylbutane 13. What is the correct IUPAC name for the following compound? A) 3-Hydroxymethylheptane B) 3-Hydroxymethylhexane C) 3-Methyloxyheptande D) 2-Ethyl-1-hex F), 2-Ethyl-1-hoptanol 14. What is the correct IUPAC name for the following compound? A) 5-Ethyl-3-methylhexanol B) 5-Ethyl-3-methyl-1-hexanol C) 2-Ethyl-4-methyl-6-hexanol D) 3,5-Dimethyl-7-heptanol E) 3,5-Dimethyl-1-heptanol 15. What is the correct IUPAC name for the following compound? A) 5-Ethyl-3-fluorohexanol B) 5-Ethyl-3-fluoro-1-hexanol C) 2-Ethyl-4-fluoro-6-hexanol D) 3-Fluoro-5-methyl-7-heptanol E) 3-Fluoro-5-methyl-1-heptanol