
The general formula for alcohol series is . Which formula for alcohol contains four carbons?
A.
B.
C.
D.
Answer
492.3k+ views
Hint: Alcohols are the compounds containing hydroxyl groups ( ) as a functional group in them. An alcohol is formed by replacing a hydrogen atom in an alkane with a hydroxyl group. The general formula of an alcohol is given as . So when the no. of carbons is 1 in an alcohol, then the no. of hydrogens will be . In this way we are finding the no. of hydrogens present in an alcohol with four carbon atoms excluding the hydrogen in hydroxyl group.
Complete step by step solution:
We are given the general formula for alcohol series is .
We have to find the formula for alcohol with four carbons.
As we can see in the first option , the alcohol contains five carbon atoms. So it is not our required answer.
And the fourth option is , it contains three carbon atoms. Therefore it is not our answer.
Third option has four carbon atoms, but the no. of hydrogen atoms is 8. When an alcohol has 4 carbon atoms, then it should have hydrogen atoms excluding the hydrogen of hydroxyl group. Here it is 8 not 9, so this alcohol is not our required answer.
Second option is , here the no. of carbon atoms is 4 and the no. of hydrogen atoms is 9. It satisfy the general form of an alcohol as
is called 1-butanol or butyl alcohol.
Therefore, the correct option is Option B.
Note:
In chemistry, organic compounds which have a general formula are Alkanes, alkenes, alkynes, alcohols, ethers, aldehydes, ketones, acids and esters. The general formula of alcohol and ether are the same. If these both compounds contain the same number of carbon atoms, then the corresponding no. of hydrogen atoms and oxygen atoms are also the same. So be careful with alcohol and ether.
Complete step by step solution:
We are given the general formula for alcohol series is
We have to find the formula for alcohol with four carbons.
As we can see in the first option
And the fourth option is
Third option
Second option is
Therefore, the correct option is Option B.
Note:
In chemistry, organic compounds which have a general formula are Alkanes, alkenes, alkynes, alcohols, ethers, aldehydes, ketones, acids and esters. The general formula of alcohol and ether are the same. If these both compounds contain the same number of carbon atoms, then the corresponding no. of hydrogen atoms and oxygen atoms are also the same. So be careful with alcohol and ether.
Recently Updated Pages
Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Social Science: Engaging Questions & Answers for Success

Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Physics: Engaging Questions & Answers for Success

Master Class 11 Biology: Engaging Questions & Answers for Success

Class 11 Question and Answer - Your Ultimate Solutions Guide

Trending doubts
Explain why it is said like that Mock drill is use class 11 social science CBSE

The non protein part of an enzyme is a A Prosthetic class 11 biology CBSE

Which of the following blood vessels in the circulatory class 11 biology CBSE

What is a zygomorphic flower Give example class 11 biology CBSE

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

The deoxygenated blood from the hind limbs of the frog class 11 biology CBSE
