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Periodic Table and Periodicity question

2010 · Shift 2 · Q6
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Periodic Table and Periodicity question

2010 · Shift 2 · Q6

JEE AdvancedChemistryPeriodic Table and PeriodicityNumerical+2 / −1
Among the following, the number of elements showing only one non-zero oxidation state is : O, Cl, F, N, P, Sn, Tl, Na, Ti
Numerical answer
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