The formula for Ethane is

Correct option is B

The correct answer is (B) CH₃CH₃

Explanation:
• Ethane is the second simplest member of the alkane series of hydrocarbons.
• The general formula for alkanes is $C_nH_{2n+2}$.
• For Ethane, $n = 2$. Therefore, the molecular formula is $C_2H_6$.
• Structurally, it consists of two carbon atoms linked by a single bond, with each carbon atom bonded to three hydrogen atoms, represented as $CH_3-CH_3$ or $CH_3CH_3$.
• It is a colorless, odorless gas at standard temperature and pressure and is a major component of natural gas.

Information Booster:
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• Ethane is used industrially primarily for the production of ethylene through steam cracking.
• Alkanes are known as 'paraffins' because they have little affinity (low reactivity) with other substances.

Additional Knowledge:
• CH₄ (Option A): The formula for Methane, the simplest alkane ($n=1$).
• CH₃CH₂CH₂CH₃ (Option C): The formula for Butane ($n=4$).
• CH₃(CH₂)₄CH₃ (Option D): The formula for Hexane ($n=6$).