The pair of elements forming ionic bond is :
Which of the following is not correct? Order of basicity Order of nucleophilicity(a) F−>Cl−>Br− Br−>Cl−>F−(b) H−O−O−>OH− H−O−O−>OH−(c)CH3>NH−2>OH− CH3>NH−2>OH−(d)H2O>H2S H2O<H2S