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Question

The equivalent weight of chlorine molecule in the equation:
3Cl2+6NaOH5NaCl+NaClO3+3H2O

A
42.6
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B
35.5
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C
59.1
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D
71
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Solution

The correct option is B 42.6
For the relation -

NaoH+3cl25Nacl+Naclo3+3H2O

In 1st case, cl02Nacl1

O.N. decrease by 1
So, n - factor = 1

Equivalent weight =m1...(1)

In 2ndcase,cl02Naclo3

O.N. increase by 5
so n - factor = 5
Equivalent weight =M5...(2)

Adding (1) & (2)

M1+M535.51+35.55

3.5+7.1

42.6

So, the correct option is A

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