객관식
Given the two compounds (n-butane) and (isobutane), identify the relationship between these two compounds.
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1. A Review of General Chemistry
Constitutional Isomers
객관식
Which of the following pairs are constitutional isomers of ?
A
Ethylene glycol and ethanol
B
Ethylene glycol and methoxy methanol
C
Methoxy methanol and dimethyl ether
D
Ethanol and dimethyl ether
검증된 단계별 안내1
Step 1: Understand the molecular formula given, which is \(C_2H_6O_2\). This means any isomers must have exactly 2 carbon atoms, 6 hydrogen atoms, and 2 oxygen atoms.
Step 2: Identify the structures of each compound mentioned: Ethylene glycol (HO-CH2-CH2-OH), Ethanol (C2H5OH), Methoxy methanol (CH3-O-CH2-OH), and Dimethyl ether (CH3-O-CH3). Note their molecular formulas to check if they match \(C_2H_6O_2\).
Step 3: Determine which pairs have the same molecular formula \(C_2H_6O_2\). For example, Ethylene glycol and Methoxy methanol both have \(C_2H_6O_2\), while Ethanol and Dimethyl ether have \(C_2H_6O\).
Step 4: Confirm that the pairs with the same molecular formula differ in connectivity (i.e., how atoms are bonded), which defines constitutional isomers. For instance, Ethylene glycol and Methoxy methanol have the same formula but different bonding arrangements.
Step 5: Conclude that the pair which are constitutional isomers must have the same molecular formula but different connectivity, which in this case is Ethylene glycol and Methoxy methanol.
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