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CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
from organic chemistry of class 12
Asked by sanyaagrahari8888
28th November 2023,
1:07 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Which of the following is most acidic? (i) Benzyl alcohol. (ii) Cyclohexanol. (iii) Phenol. (iv) m-Chlorophenol.
Asked by rohanm
14th February 2022,
4:49 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
how can you prepare secondary alcohol using carbonyl compound explain with example
Asked by deepakatur454
28th November 2020,
4:29 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
what happens when ethyl alcohol is passed over copper at 300 degree celcius
Asked by holebasubudihal
9th August 2020,
2:58 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Pls solve sir
Asked by sulaikhasulu393
12th June 2020,
9:34 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
alcohol property
Asked by divi
23rd February 2020,
7:26 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Plz answer 5th with reaction and explanation
Asked by lovemaan5500
13th January 2020,
9:35 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
How to convert propan-1-ol to 2-bromopropane?
Asked by lovemaan5500
31st December 2019,
4:59 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Pl ans sir..pl with reason Which of the following is an aromatic acid A.phenol B.benzyl alcohol C.3-methly benzylalcohol D.3-methylphenol The ans can be more than one
Asked by jain.pradeep
30th August 2019,
4:16 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Among ethyl amine and ethyl alcohol which one of them have higher boiling point and why
Asked by bhagatshailesh854
21st August 2019,
3:53 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Write the name of primary alcohol which can react with Lucas reagent at room temperature
Asked by sendipjoy
8th August 2019,
11:06 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
The major product of the reaction between benezenediazonium chloride and ethanol is
Asked by rollykashyap99
15th May 2019,
7:30 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
American organic compound A on treatment with ethyl alcohol gives a carboxylic acid B and compound C. Hydrolysis of C under acidic condition gives B and D. Oxidation of B with KMnO4 also gives D. Compound N on heating with Ca (OH)2 gives E . Compound E does not give Tollen's test and doesn't reduce Fehling's solution but forms yellow ppt with Brady's reagent. Identify A to E.
Asked by mridulabarua05
21st February 2019,
12:59 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
While sepratiing a mixture of ortho and para nitrophenols by steam distillation,name the isomer which will be steam volatile.Give reason.
Asked by Balbir
25th February 2018,
11:36 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
illustrate and explain cross aldol reaction with suitable examples?
Asked by vasturushi
18th June 2017,
9:55 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
give a chemical test to distinguish butan2ol and 2methylpropane 2 ol.
Asked by vasturushi
18th June 2017,
9:07 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
how to convert benzyl chloride to benzyl alcohol?
Asked by vasturushi
17th June 2017,
11:04 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Alcohols are said to be soluble in water but why n-Decyl alcohol is insoluble?
Asked by Topperlearning User
7th June 2016,
3:36 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
The order of reactivity of alcohols towards dehydration forming alkenes is Tertiary > Secondary > Primary alcohol. Explain?
Asked by Topperlearning User
7th June 2016,
3:36 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
How will you distinguish primary, secondary and tertiary alcohols by Lucas test?
Asked by Topperlearning User
7th June 2016,
3:36 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Alcohols undergo a number of reactions involving cleavage of C-OH bond, same is not true for phenols. Why?
Asked by Topperlearning User
7th June 2016,
3:34 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Explain why phenols give coupling reaction but alcohols do not.
Asked by Topperlearning User
7th June 2016,
3:33 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
The C-O-H bond angle in alcohol is slightly less than the tetrahedral angle whereas the C-O-C bond angle in ethers is slightly greater. Why?
Asked by Aswin
9th January 2016,
4:37 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
WHy tertiary alchol on treating with lucas reagent gives turbidity immediately and secondary alcohol give turbidity after sometime and primary gives no turbidity
Asked by Gishin Rajan
23rd October 2015,
4:18 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
An organic compound A (C4H10O) reacts with HI giving a compound B (C4H9I) which on reduction gives n-butane .On oxidation A gives a compound C (C4H8O) and then an acid D (C4H8O2). Deduce the structures of A,B,C and D .
Asked by Topperlearning User
26th March 2014,
12:32 PM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
How will you get ethene from ethanol?
Asked by Topperlearning User
26th March 2014,
10:48 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
How will you convert ethanol to acetic acid?
Asked by Topperlearning User
26th March 2014,
10:13 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Why alcohols boil at high temperature than alkanes?
Asked by Topperlearning User
26th March 2014,
10:05 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Why alcohols are miscible with water?
Asked by Topperlearning User
26th March 2014,
9:54 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
State any two uses of methanol and ethanol.
Asked by Topperlearning User
26th March 2014,
9:41 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
How would you obtain the following? (i) Picric acid (2, 4, 6-trinitrophenol) from phenol (ii) 2-Methylpropene from 2-methylpropanol
Asked by Topperlearning User
26th March 2014,
9:36 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Asked by Topperlearning User
26th March 2014,
9:24 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
What happens when Propan-2-ol is heated with I2 and KOH?
Asked by Topperlearning User
26th March 2014,
9:19 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
How will you distinguish between 1-butanol and 2-butanol?
Asked by Topperlearning User
26th March 2014,
9:17 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
How will you distinguish between phenol and cyclohexanol?
Asked by Topperlearning User
26th March 2014,
9:12 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Write the Williamson's synthesis reaction.
Asked by Topperlearning User
26th March 2014,
9:01 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Why the boiling point of phenol is higher than the corresponding aromatic hydrocarbons and haloarenes?
Asked by Topperlearning User
26th March 2014,
7:47 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Which among methanol and phenol is most soluble and why?
Asked by Topperlearning User
26th March 2014,
7:45 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
What happens when oxygen is bubbled through an ethereal solution of Phenyl magnesium bromide?
Asked by Topperlearning User
26th March 2014,
7:41 AM
CBSE - XII Science - Chemistry - Alcohols, Phenols and Ethers
Convert phenol to aspirin & salol respactively.
Asked by nannu1142
21st February 2008,
10:01 AM
