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Question
Two hydrocarbons such as octane and decane differ in molecular mass by ______ units.
Options
14
28
13
42
MCQ
Fill in the Blanks
Solution
Two hydrocarbons such as octane and decane differ in molecular mass by 28 units.
Explanation:
Molecular mass of octane \[\ce{(C8H18)}\] = 114
Molecular mass of decane \[\ce{(C10H22)}\] = 142
Difference between octane and decane = (142 − 114)
= 28
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Alkanes - Introduction
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