Alcohol Functional Group
Alcohol Functional Group
Alcohols:
Alcohols are the group of the organic compounds which contains carbon, hydrogen and oxygen.These are obtained by replacement of one hydrogen atom with the hydroxy group.
Classification of Alcohols:
Alcohols are classified according to number of hydroxyl groups present in their molecule. Alcohols with one, two and three hydroxyl groups are called monohydric, dihydric & trihydric alcohols respectively. Alcohols which contains four or more hydroxyl groups are called polyhydric alcohols.
Methanol Ethylene glycol Glycerol Butane - 1,2,3,4- tetrol
Monohydric alcohols are further divided into three classes :
(i) Primary alcohol : The hydroxyl group is attached with primary carbon atom. They possess a characteristic group
(ii) Secondary alcohol : The hydroxyl group attached to secondary carbon atom. They possess group.
Propane - 2 - ol
(iii) Tertiary alcohol : The hydroxyl group attached to tertiary carbon atom. They possess a characteristic group C - OH.
2 - Methyl propan - 2 - ol
Physical Properties:
1. The first two members of alcohol; methanol and ethanol, are volatile liquids.
2. All alcohols are neutral to indicators.
Which of the following are correct : (a) The boiling point of alcohols increases as their molecular mass increases. (b) Alcohols are poor conductors of electricity because hydrogen in the hydroxyl group does not ionize. | |||
| Right Option : C | |||
| View Explanation | |||
Alcohol react with metallic sodium to liberate ____________________________. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct : (a) Alcohols react with acids to form esters. (b) The first two members of alcohol; methanol and ethanol, are volatile liquids. (c) Alcohols which contains four or more hydroxyl groups are called polyhydric alcohols. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [20]
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
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Yatharthi Sharma
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Shivam Rana
7thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
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Om Umang
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Aman Kumar Shrivastava
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
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10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
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8thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
