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Oxoacids of Halogens

Chlorous acid...

Question

Chlorous acid is unstable and decomposes into :

A

H C l, {C l O}_{2}

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B

H C l, {C l}_{2}

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C

H O C l, {C l O}_{2}

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D

H O C l, {C l}_{2}

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Solution

The correct option is A $H C l, {C l O}_{2}$
It fresh solution is colourless but soon it turns yellow due to formation of $C l O_{2}$

$5 H C l O_{2} \to 4 C l O_{2} + H C l + 2 H_{2} O$

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Similar questions

Find the oxidation number of elements in each case :

C l

C l_{2}, H O C l, C l_{2} O, C l O_{2}, K C l O_{3}

C l_{2} O_{7}

.

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.

Q. In the oxidation-reduction reaction below:

C l O_{3}^{-} + C l^{-} \to C l_{2} + C l O_{2}

{C l O_{3}}^{-} + C l^{-} \to C l_{2} + C l O_{2}

Which of the following is correct for this reaction:

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