1.In the borax bead test of Co2+\mathrm{Co^{2+}}Co2+, the blue colour of the bead is due to the formation of:a.B2O3\mathrm{B_2O_3}B2O3b.Co3B2\mathrm{Co_3B_2}Co3B2c.Co(BO2)2\mathrm{Co(BO_2)_2}Co(BO2)2d.Zn(BO2)2\mathrm{Zn(BO_2)_2}Zn(BO2)2Login to continueOnly logged in users canattempt or see the solution.
