What is the formula for the homologous series of alcohols that can be formed with alkanes?

$C_{n} H_{2 n - 3} O$

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$C_{n} H_{2 n + 2} O$

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$C_{n} H_{2 n - 1} O$

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$C_{n} H_{2 n + 4} O$

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Solution

The correct option is B
$C_{n} H_{2 n + 2} O$

The functional group of alcohols is $- O H$ . The homologous series of alkanes can be given by $C_{n} H_{(} 2 n + 2)$ . Since one hydrogen is replaced by $- O H$ group the homologous series for alkanols (alkane + OH) becomes $C_{n} H_{2 n + 1} O H$ .

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What is the general formula of the homologous series of alcohols?

Q. The alcohols, methanol, ethanol, propanol, butanol, etc. form a homologous series. This means that they have:

Q. Assertion :Homologous series is a series of compounds with the same general formula, usually varying by a single parametersuch as the length of a carbon chain. Reason: Series are the straight-chained alkanes(paraffins), and some of their derivatives (such as the primary alcohols, aldehydes, and (mono)carboxylic acids.

Q. What is the homologous series of alcohols, aldehyde, ketones, and carboxylic acid ?

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What is the formula for the homologous series of alcohols that can be formed with alkanes?

The correct option is B CnH2n+2O The functional group of alcohols is −OH. The homologous series of alkanes can be given by CnH(2n+2). Since one hydrogen is replaced by −OH group the homologous series for alkanols (alkane + OH) becomes CnH2n+1OH.

The correct option is B
$C_{n} H_{2 n + 2} O$

The functional group of alcohols is $- O H$ . The homologous series of alkanes can be given by $C_{n} H_{(} 2 n + 2)$ . Since one hydrogen is replaced by $- O H$ group the homologous series for alkanols (alkane + OH) becomes $C_{n} H_{2 n + 1} O H$ .