The reaction of hydrogen bromide with propene in absence of peroxide is an example of a/an

Which of the following are arranged in the decreasing order of dipole moment?

Which of the following events does not occur during S_N2 reaction mechanism?

The intermidiate during the addition of HCI to propane in presence of peroxide is

The order of rate of hydrolysis of alkyl halides 1^o, 2^o, 3^o and CH₃ X by the S_N2 pathway is

In the following reaction,

C6H5CH2Br \(\xrightarrow [ (ii){ H }_{ 3 }{ O }^{ + } ]{ (i)Mg,ether } \)

the product 'X' is

An alkyl bromide (X) reacts with sodium in ether to form 4,5-diethyloctane, the compound (X) is

Which of the following methods cannot be used to prepare allyl fluride ?

Which of the following compound/s on halo-generation give a racemic mixture of products ?

The reagents used in the preparation DDT from chlorobenzene are

Alkyl halides are insoluble in water because they do not form ......... with water.

Vinyl chloride on reaction with dimethyl copper gives.......

what happens when chlorobenzene is subjected to hydrolysis?

Why are haloarenes more stable than haloalkanes and undergo electrophilic substitution reaction at ortho and para positions?

Draw the structures of optically active unsaturated compound having molecular formula C₅H₉Br, that after addition of H₂ becomes either optically inactive or shows optical activity.

Aryl chlorides and bromides can be easily prepared by electrophilic substitution of arenes with chlorine and bromine respectively in the presence of Lewis acid catalysts.  But why does preparation of aryl iodides requires presence of an oxidising agent?

Discuss the role of Lewis acids in the preparation of aryl bromides and chlorides in the dark.

Discuss the nature of C-X bond in the haloarenes.

Name the following halides according to IUPAC system and classify them as alkyl, allyl, bezyl (primary, secondary, tertiary), vinyl or aryl halides:
(i) (CH₃)₂ CHCH(CI)CH₃
(ii) CH₃CH₂CH(CH₃)CH(C₂H₅)Cl
(iii) CH₃CH₂C(CH₃)₂CH₂I
(iv) (CH₃)₃CCH₂CH(Br)C₆H₅
(v) CH₃CH(CH₃)CH(Br)CH₃
(vi) CH₃C(C₂H₅)₂CH₂Br
(vii) CH₃C(Cl)C₂H₅CH₂CH₃
(viii) CH₃CH = C(Cl)CH₂CH(CH₃)₂
(ix) CH₃CH = CHC(Br)(CH₃)₂
(x) p-ClC₆H₄CH₂CH(CH₃)₂
(xi) m-ClCH₂C₆H₄CH₂C(CH₃)₃
(xii) o-BrC₆H₄CH(CH₃) CH₂CH₃.

Write the equations for the preparation of 1-iodobutane from:
(a) 1-iodobutane from:
(b) 1-butanol
(c) but-1-ene.

What happens when
(i) n-butyl chloride is treated with alcoholic KOH,
(ii) bromobenzene is treated with Mg in the presence of dry ether,
(iii) chlorobenzene is subjected to hydrolysis,
(iv) ethyl chloride is treated with (aq.) KOH,
(v) methyl bromide is treated with sodium in the presence of dry ether,
(vi) methyl chloride is treated with KCN?

Trichloromethane or chloroform is a colorless oily liquid with a peculiar smell.It is sparingly soluble in water.The vapor when enhaled cause unconsciousness and therefore, it is used as an anesthetic.
Answer the following questions:
(i) What happens when chloroform is not protected from oxygen during its storage?
(ii) Why is the use of chloroform as an anesthetic has been reduced?

Carbon compounds containing more than one halogen atom are usually called polyhalogen compounds. Polyhalogen compounds are useful in industry and agriculture. One of the important polyhalogen compound is used as an insecticide.
(i) Name the polyhalogen compound for which Paul Muller won the Nobel Prize in medicine and physiology. Draw its structure also.
(ii) Why is the use of DDT banned in some countries?
(iii) What values do you derive from the answer of above question?

Benzene on reaction with HOCI in presence of an acid produces organic compound (A), (A) on treatment with NaNH₂/liq. NH₃ furnishes another organic compound (B). (B) on treatment with HBF₄ affords an organic compound (C) wich on heating with NaNO₂ gives organic compound (D). Identify (A), (B), (C) and (D).