Question

write molecular formula for first two homologues of alcohol group​

Answer 1

Answer:

methanol CH3OH

ethanol C2H5OH

Answer 2

The first two homologous of alcohol group​ are $CH_3OH$ (Methanol)and $C_2H_5OH$ (Ethanol).

Explanation:

• Homologous series is a group of elements having the same functional group in them and have similar properties between them.

• The difference between the successive element is of $CH_2$ groups.

• All the member of the Alcohol Series has the functional group OH at last in their chemical formula and in their naming ‘ol’ is used at the last of the name.

• Methoanol is also known as 'methyl alcohol' which are linked with the hydroxyl group.

• Ethanol is a ' colorless liquid' with a slight characteristic odor.

Learn more about methanol

If molality of methanol in water is 5 then the mass

percentage of methanol in the solution is

(1) 21.5%

(2) 10,5%

(3) 13.8%

(4) 27.2%

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1 molal aqueous solution of methanol is provided. The mole fraction of methanol in the solution is.

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