Question

Which of the following formula represents Alkene?

• A. \( C_nH_{2n+1} \)
• B. \( C_nH_{2n} \)
• C. \( C_nH_{2n+4} \)
• D. \( C_nH_{2n-2} \)

Hint:

For alkenes, the general formula is \( C_nH_{2n} \), where \( n \) is the number of carbon atoms. This formula reflects the presence of a double bond between two carbon atoms.

Answer 1

The Correct Option is B

The general formula for alkenes is \( C_nH_{2n} \), where \( n \) represents the number of carbon atoms. Alkenes are hydrocarbons that contain at least one carbon-carbon double bond, and the formula \( C_nH_{2n} \) reflects the number of hydrogen atoms in relation to the carbon atoms, with two fewer hydrogens than the corresponding alkane (which has the formula \( C_nH_{2n+2} \)). Thus, the correct formula for alkenes is B \( C_nH_{2n} \).