$B u t - 1 - e n e$ reacts with steam as shown to form a mixture of two structural isomers, $S$ and $T$ .

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Solution

Addition of water on double bond gives two product one minor and one major. The major product reacts with dichromate ion to give oxidizedproduct.

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Q. A Grignard reagent [A] and a haloalkane [B] react together to give [C]. Compound [C] on heating with KOH yields a mixture of two geometrical isomers, (D) and (E), of which (D) predominates isomers. (C) and (E) have the same molecular formula but (C) gives 1-bromo-3-phenylpropane on reaction with HBr in the presence of a peroxide. Give structures of (A), (B) and (C) and configuration of (D) and (E) with reasons.

Q. The octahedral complex

C o S O_{4} C l_{5} N H_{3}

exists in two isomeric forms

X

and

Y

. Isomers

X

reacts with

A g N O_{3}

to give a white precipitate, but does not react with

B a C l_{2}

. Isomer

Y

gives white precipitate with

B a C l_{2}

but does not react with

A g N O_{3}

.
Isomers

X

and

Y

are:

$C o S O_{4} C l .5 N H_{3}$ exists in two isomeric forms 'A and 'B'. Isomer 'A' reacts with $A g N O_{3}$ to give white precipitate, but does not react with $B a C l_{2} .$ Isomer 'B' gives white precipitate with $B a C l_{2}$ but does not react with $A g N O_{3} .$ Answer the following questions.
(a) Identify \A' and 'B' and white their structural formulae
(b) Name the type of isomerism involved.
(c) Give the IUPAC name of 'A' and 'B'.