Bihar Board Class 12 (Science) The d- and f-Block Elements — practice questions
35 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Bihar Board Class 12 (Science) The d- and f-Block Elements in the app →Among $\mathrm{Sc^{3+}}$, $\mathrm{Ti^{4+}}$, $\mathrm{V^{2+}}$ and $\mathrm{Zn^{2+}}$, which is **coloured** Ethylenediamine (en) is best described as a:The coordination number 6 most commonly gives which geometry?The IUPAC name of K3[Fe(CN)6] is:The drug CISPLATIN has the formula [Pt(NH3)2Cl2]. Its anti-cancer activity comes from the:In Valence Bond Theory, an octahedral LOW-SPIN complex like [Co(NH3)6]³⁺ uses which hybridisation?In Crystal Field Theory, the 5 d-orbitals in an OCTAHEDRAL field split into:In the spectrochemical series, which ligand is the STRONGEST field?The unusual stability of EDTA-metal complexes is mainly due to the:The biological molecule HAEMOGLOBIN contains which metal at its centre?A COORDINATION COMPOUND consists of a central metal atom (or ion) BONDED to a set of surrounding molecules or The COORDINATION NUMBER of the central metal in a complex isA ligand that has ONLY ONE donor atom (which forms a single bond to the central metal) is calledIn the complex $[\mathrm{Co(NH_3)_5\,Cl}]\mathrm{Cl_2}$, the oxidation state of cobalt isETHYLENEDIAMINETETRAACETATE (EDTA) is a famous polydentate ligand. It isThe IUPAC name of $[\mathrm{Co(NH_3)_6}]^{3+}$ isCis-trans isomerism is observed inCoordination compounds of transition metals are often COLOURED. CFT explains this colour as arising from$[\mathrm{Ni(CO)_4}]$ is tetrahedral and diamagnetic. The oxidation state of nickel in this complex isThe HEXACYANIDOFERRATE(II) ion $[\mathrm{Fe(CN)_6}]^{4-}$ contains iron in oxidation stateWhich of the following coordination compounds shows OPTICAL ISOMERISM?Which group 12 triad is not regarded as transition metals by IUPAC?The ground state outer configuration of chromium (Z = 24) isHeavier d-block metals show more frequentWhich oxidation state of titanium is the most stable?IUPAC defines a transition metal as one with an incomplete d subshell inChromium(III) oxide, Cr2O3, isSodium chromate is made by fusing which ore with sodium carbonate in excess air?Aqueous sodium chromate solution has which colour?On adding acid to a yellow chromate solution, the ion formed is thePotassium dichromate is used as a primary standard inAcidified potassium dichromate oxidises iodides toCrystals of potassium permanganate areWhen KMnO4 is heated at 513 K, it gives K2MnO4, MnO2 andThe lanthanoids are the fourteen elements that follow