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Chemistry
Euchlorine is produced by heating a mixture of
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Q. Euchlorine is produced by heating a mixture of
AIIMS
AIIMS 1995
The p-Block Elements - Part2
A
$KCl +$ conc. $H _{2} SO _{4}$
3%
B
$KCl +$ conc. $HCl$
15%
C
$K _{2} ClO _{3}+ conc . H _{2} SO _{4}$
21%
D
$KClO _{3}+$ conc. $HCl$
62%
Solution:
When KClO
3
is heated with conc. HCl, a mixture of chlorine and chlorine dioxide is obtained [called Euchlorine].
$[KClO_3 + HCl \to KCl + HClO_3 ] × 2$
$2HClO_3 + 2HCl \to 2ClO_2 + Cl_2 + 2H_2O$
$2KClO_3 + 4HCl \to 2KCl + 2ClO_2 + Cl_2 + 2H_2O$