MCQ
The general formula of alkenes is:
- ✓$C _n H _{2 n}$
- B$C _n H _{2 n-2}$
- C$C _n H _{2 n+2}$
- D$C _n H _{2 n+1}$
✓
Answer
Correct option: A.
$C _n H _{2 n}$
(a) $CnH _{2 n}$
Explanation : The alkenes are the hydrocarbons in which carbon atom is bonded with a double bond with other carbon atom. The general formula of alkenes are $C _n H _{2 n}$.
For example: $C _2 H _4, C _3 H _6, C _4 H _8$, etc.
In $C _2 H _4$, number of carbon atoms: 2, number of hydrogen atoms: $2(2)=4$
Explanation : The alkenes are the hydrocarbons in which carbon atom is bonded with a double bond with other carbon atom. The general formula of alkenes are $C _n H _{2 n}$.
For example: $C _2 H _4, C _3 H _6, C _4 H _8$, etc.
In $C _2 H _4$, number of carbon atoms: 2, number of hydrogen atoms: $2(2)=4$
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