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Physical Properties of Alkenes

The reaction ...

Question

The reaction of ethyne with which of the following gives $C H_{2} B r - C H B r C l$ ?

A

H C l

, then

H B r

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B

H C l

, then

B r_{2}

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C

C l_{2}

, then

H B r

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D

C l_{2}

, then

B r_{2}

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Solution

The correct option is B $H C l$ , then $B r_{2}$
$C_{2} H_{2} H C l, {B r}_{2} - ------ \to C H_{2} B r - C H B r C l$
$C_{2} H_{2}, H C l$ gives $C_{2} H_{3} C l$ then ${B r}_{2}$ gives $C H_{2} B r C H B r C l$

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Similar questions

Arrange the following in the order of property indicated for each set:

$F_{2}, C l_{2}, B r_{2}, I_{2}$ - increasing bond dissociation enthalpy.

HF,HCl, HBr, HI- Increasing acid strength.

$N H_{3}, P H_{3}, A s H_{3}, S b H_{3}, B i H_{3}$ - increasing base strength.

Q. Arrange the following in order of property indicated for each set:
a.

F_{2}, C l_{2}, B r_{2}, I_{2}

- increasing bond dissociation enthalpy.
b.

H F, H C l, H B r, H I

- increasing acid strength.
c.

N H_{3}, P H_{3}, A s H_{3}, S b H_{3}, B i H_{3}

- increasing base strength.

The correct order of the oxidizing power of Cl₂, Br₂, I₂ and O₂ is:

Q. Match the following

	Column-1		Column-2
A	Acidic reactions	p	${C l}_{2} + 2 K B r \to 2 K C l + {B r}_{2}$
B	Displacement reactions	q	$C a + {C l}_{2} \to {C a C l}_{2}$
C	Oxidising properties	r	${C l}_{2} + H_{2} O \to H O C l + H C l$
D	Addition reactions	s	$2 K I \to {C l}_{2} + 2 K C l + I_{2}$
E	Reaction with metals	t	${S O}_{2} + {C l}_{2} \to {S O}_{2} {C l}_{2}$

Q. Consider the following orders –
(1)

F_{2} > C l_{2} > B r_{2} > I_{2} :

boiling point
(2)

F_{2} > C l_{2} > B r_{2} > I_{2} :

oxidizing nature
(3)

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

F_{2} > C l_{2} > B r_{2} > I_{2} :

H O C l > H C l O_{2} > H C l O_{3} > H C l O_{4} :

Acidic nature
(8)

H O C l > H C l O_{2} > H C l O_{3} > H C l O_{4} :

Oxidizing nature
Then calculate

(x^{2} + y^{2})

x

is correct order and

y

is incorrect order.

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