/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 4 : The d-and f-Block Elements This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 Brass is an alloy of Cu and Ni Fe and C Fe and Cr Cu and Zn 2 / 10 Lanthanoid contraction results in similar properties increase in size decrease in ionization energy increase in reactivity 3 / 10 Maximum oxidation state shown by Cr is 4 5 6 7 4 / 10 Number of d-electrons in Cu²⁺ ion is 7 8 9 10 5 / 10 Which oxidation state of chromium is most stable? 2 3 6 4 6 / 10 Which transition metal ion has d⁰ configuration? Ti⁴⁺ V²⁺ Cr³⁺ Mn²⁺ 7 / 10 The colour of KMnO₄ is due to d–d transition f–f transition nuclear excitation charge transfer 8 / 10 Number of electrons lost by Cu to form Cu²⁺ is 1 2 3 4 9 / 10 Which d⁵ configuration is most stable? Half-filled stability High pairing energy Shielding effect Relativistic effect 10 / 10 KMnO₄ acts as an oxidizing agent mainly due to Mn⁺² Mn⁺⁴ Mn⁺⁶ Mn⁺⁷ Your score is 0% Restart quiz
