This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
You're on a roll — C) but-2-ene Here's how to determine the isomer: Step 1: Determine the molecular formula of 2-methylprop-1-ene. The name "prop" indicates a 3-carbon chain. "1-ene" indicates a double bond starting at the first carbon. "2-methyl" indicates a methyl group (CH_3) on the second carbon. The structure is: CH_2=C(CH_3)-CH_3 Counting the atoms: • Carbon atoms: 3 (in the main chain) + 1 (in the methyl group) = 4 carbon atoms. • Hydrogen atoms: 2 (on CH_2) + 3 (on CH_3 attached to C2) + 3 (on CH_3 at the end) = 8 hydrogen atoms. The molecular formula for 2-methylprop-1-ene is C_4H_8. Step 2: Determine the molecular formula for each option. A) 3-methyl but-1-ene: "but" means 4 carbons in the main chain, plus 1 methyl group, totaling 5 carbons. Its formula is C_5H_10. B) 2-methyl but-1-ene: "but" means 4 carbons in the main chain, plus 1 methyl group, totaling 5 carbons. Its formula is C_5H_10. C) but-2-ene: "but" means 4 carbons in the main chain. "2-ene" means a double bond between the second and third carbons. The structure is: CH_3-CH=CH-CH_3 Counting the atoms: • Carbon atoms: 4 carbon atoms. • Hydrogen atoms: 3 (on first CH_3) + 1 (on first CH) + 1 (on second CH) + 3 (on second CH_3) = 8 hydrogen atoms. The molecular formula for but-2-ene is C_4H_8. D) pent-2-ene: "pent" means 5 carbons in the main chain. Its formula is C_5H_10. Step 3: Compare molecular formulas. An isomer has the same molecular formula but a different structural formula. Both 2-methylprop-1-ene and but-2-ene have the molecular formula C_4H_8. The final answer is C. One more to go today! Send it over.