Haloalkanes and Haloarenes in Hindi

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Haloalkanes and Haloarenes Objective in Hindi for Students

Chlorobenzene on heating with aqueous NaOH at 623 K under pressure and formed product on acidification gives

(A) Phenate

(B) Carbolic acid

(C) Sodium benzene sulphonate

(D) Carbonic acid

Option b - Carbolic acid

During the reaction between chlorobenzene and conc.H₂SO4, the H atom from the benzene ring is substituted by

(A) -SO₂H group

(B) SO2 group

(C) -SO4H group

(D) -SO3H group

Option d - -SO3H group

Which type of chemical reaction is used to convert lower haloalkane to higher alkane?

(A) Saytzeff's rule

(B) Williamson's synthesis

(C) Wurtz synthesis

(D) Markonikov rule

Option c - Wurtz synthesis

Propylene is not obtained from ……. by dehydrohalogenation.

(A) 1-Chloropropane

(B) Sec. propyl chloride

(C) Isopropyl chloride

(D) 2-Methyl propane

Option d - 2-Methyl propane

Isobutyl bromide on reacting with magnesium metal in the presence of dry ether gives :

(A) (CH3)2CH-CH₂-Br

(B) (CH3)2CH-CH₂-MgBr

(C) (CH3)3C-Mg-Br

(D) CH3-(CH2)3MgBr

Option b - (CH3)2CH-CH₂-MgBr

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