Bleaching of a fabric cloth is done using \( A \) and excess of chlorine is removed using \( B \...

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Bleaching of a fabric cloth is done using \( A \) and excess of chlorine is removed using \( B \). \( A \) and \( B \) are :
\( \mathrm{P} \)
(A) \( \mathrm{CaOCl}_{2}, \mathrm{Na}_{2} \mathrm{SO}_{3} \)
(B) \( \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}, \mathrm{CaOCl}_{2} \)
(C) \( \mathrm{CaCl}_{2}, \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3} \)
(D) \( \mathrm{CaOCl}_{2}, \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3} \)
W
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