The general formula of alkanes is:

C_{n} H_{2 n}

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C_{n} H_{2 n + 2}

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C_{n} H_{2 n + 1}

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C_{n} H_{2 n - 1}

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Solution

The correct option is B $C_{n} H_{2 n + 2}$
The general formula of alkanes is $C_{n} H_{2 n + 2}$ it means if $n$ number of carbons are present in a compound there should be $2 n + 2$ number of hydrogen must be present then only the compound belongs to an alkane.

For example formula of methane is $C H_{4}$

Here n=1

Option B is correct.

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Similar questions

C_{n} H_{2 n} O_{n}

is the formula of

Q. The general formula

C_{n} H_{2 n} O_{2}

could be for open chain

Match the following general formula with corresponding name:

$\begin{matrix} L i s t - I & L i s t - I I (F a m i l y) & (G e n e r a l f o r m u l a) (P) & A l k y n e & 1. & C_{n} H_{2 n + 1} X (Q) & A l c o h o l & 2. & C_{n} H_{2 n - 2} (R) & A l k y l h a l i d e & 3. & C_{n} H_{2 n} (S) & A l k e n e & 4. & C_{n} H_{2 n + 2} O \end{matrix}$

Q. State whether the following statements are true or false :
(i) The general formula of alkanes is

C_{n} H_{2 n + 2}

.
(ii) Carbohydrates are body building nutrients.

Q. Write the name and formula of the 2nd member of homologous series having general formula

C_{n} H_{2 n}

The general formula of alkanes is:

The correct option is B CnH2n+2The general formula of alkanes is CnH2n+2 it means if n number of carbons are present in a compound there should be 2n+2 number of hydrogen must be present then only the compound belongs to an alkane.For example formula of methane is CH4Here n=1Option B is correct.