Problem

Problem

If XX , YY and ZZ are total number of π\pi -bond(s) in H2S2O6\text{H}_2\text{S}_2\text{O}_6 , H2SO3\text{H}_2\text{SO}_3 and H2S2O7\text{H}_2\text{S}_2\text{O}_7 respectively then calculate value of expression ∣X+Y−Z∣|X + Y - Z| .

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