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23 - Organic Chemistry Questions Answers

Chemistry >> Organic Chemistry >> Alkyl Halides, Alcohols and ethers IIT JEE

Arrange The Following in increasing order of reactivity towards nucleophilic substitution and give reason :

CH3F , CH3Cl , CH3Br , CH3I  .

 

Asked By: AAYUSH TANEJA
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Joshi sir comment
Better the leaving group the compound contains, more reactive the compound will be 
towards the nucleophilic sustitution.
Order of decreasing reactivity. 
 
CH3I > CH3Br > CH3Cl > CH3F 
 
Chemistry >> Organic Chemistry >> Alkyl Halides, Alcohols and ethers IIT JEE

Arrange The Following in increasing order of dipole moment and give reason :

Dichloromethane , chloroform , carbon tetrachloride .

Asked By: AAYUSH TANEJA
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Joshi sir comment

Dichloromethane > chloroform > carbon tetrachloride 

Chemistry >> Organic Chemistry >> General Mechanism in organic compounds IIT JEE

HOW TO COMPARE FOR HEAT OF COMBUSTION ? WHAT MOST BE STRATERGY TO DECIDE WHICH COMPOUD HAVE MORE EAT OF COMBUTION

Asked By: SIDDHANT
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Joshi sir comment

For this it is necessary to remember all the bond energies

Chemistry >> Organic Chemistry >> Nomenclature and isomerism IIT JEE

can anyone explain to me how to write the structures of some organic compounds like but-2-ol?

Asked By: ANURAG
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Joshi sir comment

name is not correct

IUPAC name has four part

Extra Group................Main Chain............Bond Name..............Main Group

so name may be

*****..........................but........................an...................................2ol

****** means no extra group is present 

Main group is alcohol and its name is ol, 2 for second place in chain

"but" for 4 carbon and "an" for all single bond

so structure will be     CH3CH(OH)CH2CH3

Chemistry >> Organic Chemistry >> Nomenclature and isomerism Others

What do you know about boron?And boron nomenclature?

Asked By: MUHAMMAD KHAN
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Joshi sir comment

Boron is  a chemical element produced by cosmic ray spallation. Chemically uncombined Boron which is classified as a metalloid is not found naturally on earth. Several allotropes of Boron exist. Natural Boron is composed of two stable isotopes one of which is Boron 10, used as a neutron capturing agent.

 

Chemistry >> Organic Chemistry >> Alkyl Halides, Alcohols and ethers IIT JEE

How does Fridal craft reaxn can be given by ESTER                        

                              CH3COOCH2CH3

 

PLEASE HELP ME

PLEASE 

Asked By: AMAN
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Joshi sir comment

CH3CO--OC2H5

This is the form of ester. In the presence of anhydrous AlCl3, C6H6 will give reaction with ester 

Chemistry >> Organic Chemistry >> Amines and other nitrogen compounds IIT JEE

JEE 2009 (MATRIX MATCH QUES.)

How  reaction takes place between                 

                                  CH3CH2CH2CH2NH2 and CHCl3/alco.KOH     giving foul smell.

PLEASE GUIDE ME.

PLEASE

Asked By: AMAN
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Joshi sir comment

This is well known Reimer Tiemann reaction

Product will be 

 CH3CH2CH2CH2NC

Chemistry >> Organic Chemistry >> Nomenclature and isomerism Board Exam

what is issomers

Asked By: AMIR KHAN
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Joshi sir comment

isomer means compound with same molecular formula but different structural formula.

Chemistry >> Organic Chemistry >> General Mechanism in organic compounds IIT JEE

explain the mechanism when alkenes are treated with cold KMnO4 ?

Asked By: MOHIT SAINI
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Joshi sir comment

Chemistry >> Organic Chemistry >> Aldehydes and Ketones Medical Exam

Iodoform test is used for-

a) starch

b) maltose

c) glucose

d) sucrose

MANIPAL 2012

Asked By: SARIKA
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Joshi sir comment

starch turns iodine blue 

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