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प्रश्न
Which of the following compounds are gem-dihalides?
(i) Ethylidene chloride
(ii) Ethylene dichloride
(iii) Methylene chloride
(iv) Benzyl chloride
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उत्तर
(i) Ethylidene chloride
(iii) Methylene chloride
Explanation:
Gem-dihalides are those dihalides in which two halogen atoms are bonded to the same carbon atom.
(i) \[\ce{\underset{Ethylidene chloride}{Cl2 - CH - CH3}}\]
(ii) \[\ce{\underset{Ethylene dichloride}{Cl - H2C - CH2 - Cl}}\]
(iii) \[\ce{\underset{Methylene chloride}{CH2Cl2}}\]
(iv)
Benzyl chloride
So, in (i) and (iii) two halogen atoms are present on the same carbon atom and they are termed gem-dihalides.
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संबंधित प्रश्न
Write the structure of the following compound:
1,4-Dibromobut-2-ene
Write the structure of the following organic halogen compound.
2-Bromobutane
How is nitromethane prepared from the following?
α-nitroalkene
The IUPAC name for tertiary butyl iodide is ____________.
IUPAC name of CH3CH2C(Br) = CH–Cl is ____________.
Ethylene dichloride can be prepared by adding HCl to ____________.
Arrange the following compounds in order of decreasing acidity:
| (I) |  |
| (II) |  |
| (III) |  |
| (IV) |  |
Write the structure of the following compound:
1,4-Dibromobut-2-ene
Give the IUPAC name of the following compound:
\[\ce{(CCl3)3CCl}\]
Write the structure of the following organic halogen compound.
4-tert-Butyl-3-iodoheptane
Name the following halides according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:
CH3C(C2H5)2CH2Br
Give the IUPAC name of the following compound:
CICH2C ≡ CCH2Br
Write the structure of the following organic halogen compound.
1,4-Dibromobut-2-ene
Give the IUPAC name of the following compound:
\[\ce{(CCl3)3CCl}\]
Write the structure of the following organic halogen compound.
4-tert-Butyl-3-iodoheptane
Give the IUPAC names of the following compound:
\[\ce{CICH2C ≡ CCH2Br}\]
Give the IUPAC name of the following compound:
\[\ce{ClCH2C ≡ CCH2Br}\]
Write structure of the following compound:
4-tert. Butyl-3-iodoheptane
Name the following halide according to the IUPAC system and classify it as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:
\[\ce{CH3C(Cl)(C2H5)CH2CH3}\]
Name the following halide according to the IUPAC system and classify it as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:
\[\ce{CH3CH2C(CH3)2CH2I}\]
