রসায়ন ২য় পত্র প্রশ্ন

When chlorine and hot concentrated aqueous sodium hydroxide are mixed the following reaction take place: $3 \mathrm{Cl}_{2}(\mathrm{aq})+6 \mathrm{NaOH}(\mathrm{aq}) \rightarrow$ $5 \mathrm{NaCl}(\mathrm{aq})+\mathrm{NaClO}_{3}(\mathrm{aq})+3 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})$ The name of the above rection is: