Which of the following alkanes is the least soluble in water?

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Question: Which of the following alkanes is the least soluble in water?

Options:

Correct Answer: Methane

Solution:

Methane is the least soluble in water due to its nonpolar nature.

Which of the following alkanes is the least soluble in water?

Which of the following alkanes is the least soluble in water?

Step 1: Understand what alkanes are. Alkanes are hydrocarbons that consist only of carbon (C) and hydrogen (H) atoms, connected by single bonds.
Step 2: Know that solubility in water depends on the polarity of the molecule. Polar molecules tend to dissolve well in water, while nonpolar molecules do not.
Step 3: Identify the alkanes in the question. Common alkanes include methane (CH4), ethane (C2H6), propane (C3H8), and butane (C4H10).
Step 4: Determine the polarity of each alkane. Alkanes are generally nonpolar because they have a symmetrical distribution of charge.
Step 5: Compare the sizes of the alkanes. As the size of the alkane increases, the nonpolar characteristics become more pronounced.
Step 6: Conclude that methane, being the smallest alkane, is the least soluble in water due to its nonpolar nature.

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