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Multiple Choice
Which of the following is the correct IUPAC name for a compound with the molecular formula C4H10?
A
Isobutane
B
Propane
C
Pentane
D
Butane
Verified step by step guidance
1
Step 1: Understand the molecular formula C4H10. This indicates a hydrocarbon with 4 carbon atoms and 10 hydrogen atoms.
Step 2: Recognize that the compound is an alkane, as it follows the general formula for alkanes, CnH2n+2.
Step 3: Determine the number of carbon atoms in the longest continuous chain. Here, there are 4 carbon atoms, which corresponds to the prefix 'but-' in IUPAC nomenclature.
Step 4: Since the compound is a straight-chain alkane with no branches, the suffix '-ane' is used, resulting in the name 'butane'.
Step 5: Verify that the name 'butane' matches the molecular formula C4H10, confirming it as the correct IUPAC name for this compound.