Which of the following is the general formula for alkenes?
Practice Questions
Q1
Which of the following is the general formula for alkenes?
C_nH_(2n)
C_nH_(2n+2)
C_nH_(2n-2)
C_nH_n
Questions & Step-by-Step Solutions
Which of the following is the general formula for alkenes?
Correct Answer: C_nH_(2n)
Step 1: Understand what alkenes are. Alkenes are a type of hydrocarbon that contains at least one double bond between carbon atoms.
Step 2: Know the basic structure of hydrocarbons. Hydrocarbons are made up of carbon (C) and hydrogen (H) atoms.
Step 3: Identify the variable 'n'. In the formula, 'n' represents the number of carbon atoms in the alkene.
Step 4: Learn the general formula for alkenes. The formula is C_nH_(2n), which means for every 'n' carbon atoms, there are '2n' hydrogen atoms.
Step 5: Apply the formula. For example, if there are 2 carbon atoms (n=2), then the number of hydrogen atoms would be 2*2 = 4, so the alkene would be C2H4.
