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  4. Consider the following reaction: 6NaOH +3cl2 →5Nacl +A+3H2O What is the oxidation number of chlorine in A?

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Q. Consider the following reaction:
$6NaOH +3cl_{2} \to5Nacl +A+3H_{2}O$
What is the oxidation number of chlorine in A?

WBJEEWBJEE 2016

Solution:

Balance the equation $6NaOH+3cl_{2} \to5NaCl +A+3H_{2}O$
to get, $6NaOH+3cl_{2} \to5NaCl +NaClO_{3}+3H_{2}O$
$\therefore $ A is $NaClO_{3} ,$ where Cl is in +5 oxidation state