Question

Write the condensed structural formulas for as many alkenes and alkynes as you can think of that have the molecular formula \(\mathrm{C}_{6} \mathrm{H}_{10}\)

Short answer

The condensed structural formulas for alkenes and alkynes with the molecular formula \(C_6H_{10}\) are: - Alkynes: 1. 1-Hexyne: \(CH_3C \equiv CC_4H_9\) 2. 3-Hexyne: \(CH_3C_2H_2C \equiv CC_2H_5\) - Cyclic Alkenes: 1. Cyclopentene: \(CH_2CHCHCH_2CH_2\) 2. Methylcyclopentene: \(CH_3C_4H_7\) 3. 1,3-Cyclohexadiene: \(CH_2=CHCH=CHCH_2CH_2\)

Step-by-step solution

Verify the molecular formula for alkenes and alkynes

To ensure we are working with the correct general formulas, let's compare the given molecular formula (\(C_6H_{10}\)) with the general formulas for alkenes (\(C_nH_{2n}\)) and alkynes (\(C_nH_{2n-2}\)): For alkenes: n = 6, so the general formula for alkenes is \(C_6H_{12}\), which is different from the given molecular formula (\(C_6H_{10}\)). For alkynes: n = 6, so the general formula for alkynes is \(C_6H_{10}\), which is the same as the given molecular formula. However, due to the existence of cyclic alkenes, which also follow the general formula \(C_nH_{2n-2}\), we should consider cyclic alkenes in this exercise as well.

Draw the possible structures for alkynes with the given molecular formula

Using the general formula for alkynes, we can draw the two possible structures with the given molecular formula (\(C_6H_{10}\)). These structures are: 1. 1-Hexyne: \(CH_3C \equiv CC_4H_9\) 2. 3-Hexyne: \(CH_3C_2H_2C \equiv CC_2H_5\)

Draw the possible structures for cyclic alkenes with the given molecular formula

Using the general formula for cyclic alkenes, we can draw the three possible structures with the given molecular formula (\(C_6H_{10}\)). These structures are: 1. Cyclopentene: \(CH_2CHCHCH_2CH_2\) 2. Methylcyclopentene: \(CH_3C_4H_7\) 3. 1,3-Cyclohexadiene: \(CH_2=CHCH=CHCH_2CH_2\) In conclusion, we have found five different condensed structural formulas for alkenes and alkynes with the given molecular formula \(C_6H_{10}\): 2 alkynes and 3 cyclic alkenes.