Which statement best describes a transition element, A metal with a completely filled d-orbital, An element with a partially filled d-orbital, A metal that only forms one oxidation state, A metal found only in Group 1, Why do transition metals form coloured ions?, Due to d–d electron transitions, Due to s–p transitions, Because they are highly reactive, Because they are strong metals, Which of the following ions is correctly matched with its colour?, MnO₄⁻ → Yellow, Cu²⁺ → Blue, CrO₄²⁻ → Purple, Fe³⁺ → Green, Which element is used as a catalyst in the Haber process?, Cu, Zn, Cr, Fe, Which of the following statements about oxidation states is true?, Transition metals only form +1 ions, Transition metals cannot change oxidation states, Transition metals can form different oxidation states, Transition metals always form colourless ions, Which property of transition metals makes them good catalysts?, High reactivity with water, Ability to form ions with fixed charges, Ability to use vacant d-orbitals to form complexes, Low melting points, Which of the following transition metals has the highest density?, Iron, Copper, Titanium, Osmium, Which electronic configuration represents a transition element?, [Ar] 3d⁵ 4s¹, [Ar] 4s², [Ne] 3s² 3p⁶, [He] 2s², Why do transition metals have high melting points?, Weak metallic bonding, Low atomic mass, Presence of many free electrons, Strong metallic bonding due to d-electrons, Which compound shows the paramagnetic property?, Zn²⁺, Fe³⁺, Sc³⁺, Cu⁺.

Transition Element

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