JEE Main Chemistry question
The reaction, , is carried out in basic medium. 1.5 mole of are allowed to react with 0.1 mole of in presence of 3.0 mole of . Moles of left after the reaction is .
Answer: 2
Solution
Balancing by electron transfer ( loses 8 electrons; each gains 2 electrons): 4Cl_2+S_2O_3^{2-}+10OH^- \to 2SO_4^{2-}+8Cl^-+5H_2O. For 0.1
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