“Introduction Halogen Derivative” MHT-CET Class 12 Chemistry Crash Course | Chapter Halogen Derivaties
In this session Asmita S. More will discuss the theory and MCQ’s of Introduction of Halogen Derivative. The session will be useful for all the aspirants of MHT-CET 2022. The session will be in Marathi and English.
Introduction
When one hydrogen atom of hydrocarbon replaced by one halogen atom is known as halogen derivative or haloalkanes.
Halogen derivative is also called as the alkyl halides.
Similarly, when one hydrogen atom of benzene is replaced by one halogen atom is known as haloarenes.
These compounds are clinically useful.
For example,
chloramphenicol used for the treatment of typhoid fever
chloroquine it is used for treatment of malaria
halothane it is used as anesthetic during surgery
Fluorinated compounds used as a potential blood substitute in surgery.
Classification
(1) On the basis of number of halogen atom
(a) Mono halogen derivative or alkyl halide -When one hydrogen atom replaced by one halogen atom from alkane.
Example
Ethyl bromide
propyl bromide
(b) Di halogen derivative -When twohydrogen atom replaced by two halogen atoms from alkane.
Example
Ethylene dichloride
*Types of dihalogenderivative =
vicinaldihalide– when the halogen atom is attached to adjacent carbon atom.
geminaldihalide – When halogen atom is attached to same carbon atom.
(c) Tri halogen derivative – When three hydrogen atoms replaced by three halogen atom from alkane.
Example
1,2,3–trichloropropane
(d) Poly halogen derivative – When more than 3 hydrogen atom replaced by halogen atom.
Example
Sorbitol
2) On the basis of type of carbon atom
(a) Primary alkyl halide -When halogen atom attached to primary carbon atom (carbon atom which is directly attached to only one carbon atom).
(b) Secondary alkyl halide – When halogen atom is attached to secondary carbon atom(carbon atom which is directly attached to 2 different carbon atoms).
(c) Tertiary alkyl halide – When halogen item is attached to tertiary carbon atom (carbon atom which is directly attached to 3 different carbon atoms).
(3) On the basis of hybridization of carbon atom
(a) Allylichalide -When halogen atom is attached to that carbonator which is next to carbon carbon double bond or which is SP 3hybridised carbon atom.
(b) Benzylic halide – When halogen atom is attached to that carbon atom which is attached to benzene ring.
(c) vinylichalide -When halogen atom is directly attached to SP 2 hybridise carbon atom which is doubly bonded carbon atom.
(d) Aryl halide -When halogen atom is directly attached to benzene ring carbon atom.
(1) Which halogen derivative is used in treatment of malaria
(A) Chloramphenicol
(B) halothane
(C) chloroquine
(D) fluorinated compounds
(2) Identify the type of alkyl halide
(A) primary alkyl halide
(B) secondary alkyl halide
(C) tertiary alkyl halide
(D) quaternary alkyl halide
(3) Identify the type of alkyl halide
(A) allylic
(B) benzylic
(C) vinylic
(D) aryl
(4) Which one is not a halogen atom
(A) Fluorine
(B) Bromine
(C) Arsenic
(D) iodine
(5) Which halogen derivative is used in refrigerant
(A) carbon tetra chloride
(B) freons
(C) DDT
(D) Iodo form
Answer:-
(1) C
(2) A
(3) C
(4) C
(5) B
♦ Important Links (महत्वाच्या लिंक्स) ♦
〉 Government Jobs.
〉 Private Jobs.
〉 सर्व परीक्षांच्या सराव प्रश्नपत्रिका (Question Papers).
〉 परीक्षेचे निकाल (Results).
〉 परीक्षा प्रवेशपत्र (Hall Tickets).
〉 MPSC भरती.
〉 Bank Jobs.
〉 Mega Bharti 2022.
〉 Current Affairs ((चालू घडामोडी).
〉 रोजगार मेळावा (Jobs Fairs).
♦जिल्हा नुसार जाहिराती ♦ |
|||||
| अहमदनगर | अकोला | अमरावती | औरंगाबाद | भंडारा | बुलढाणा |
| चंद्रपुर | धुले | गढ़चिरौली | गोंदिया | हिंगोली | जलगांव |
| जालना | कोल्हापुर | लातूर | मुंबई | नागपुर | नांदेड़ |
| नंदुरबार | नाशिक | उस्मानाबाद | पालघर | परभानी | पुणे |
| रायगढ़ | रत्नागिरि | सांगली | सातारा | सिंधुदुर्ग | सोलापुर |
| ठाणे | वर्धा | वाशिम | यवतमाल | बीड | |
♦शिक्षणानुसार जाहिराती ♦ |
|||||
| ७ वी (7th) | दहावी (SSC) | बारावी (HSC) | डिप्लोमा | आय.टी.आय | पदवी |
| पदव्युत्तर शिक्षण | बी.एड | एम.एड | एल.एल.बी / एल.एल.एम | बीएससी | एमबीए |
| बीसीए | एमसीए | बी.कॉम | एम.कॉम | GNM/ANM | एमएससी |
| बी.फार्म | एम.फार्म | बी.ई | एम.ई | BAMS/BHMS | एम.बी.बी.एस / एम.डी |
| बी.टेक | एम.टेक | MS-CIT | |||
