Transition Elements Properties: JEE Questions & Solutions

Given below are some of the statements about Mn and Mn₂O₇. Identify the correct statements. A. Mn forms the oxide Mn₂O₇, in which Mn is in…

A first row transition metal (M) does not liberate H₂ gas from dilute HCl. 1 mol of aqueous solution of MSO₄ is treated with excess of…

Among the following oxides of 3d elements, the number of mixed oxides are. Ti₂O₃, V₂O₄, Cr₂O₃, Mn₃O₄, Fe₃O₄, Fe₂O₃, Co₃O₄

Given below are two statements: Statement I: The number of pairs, from the following, in which both the ions are coloured in aqueous…

The correct set of ions (aqueous solution) with the same colour from the following is:

Match List-I with List-II. List-I List-II = Materials (A)Bronze (I) Cu, Ni (B)Brass (II) Fe, Cr, Ni, C (C)UK silver coin (III) Cu, Zn…

Match List - I with List - II. | List - I (Transition metal ion) | List - II (Spin only magnetic moment, B.M.) | |---|---| | (A) Ti³⁺ | (I)…

The correct option with order of melting points of the pairs (Mn, Fe), (Tc, Ru) and (Re, Os) is:

The calculated spin-only magnetic moments of K₃[Fe(OH)₆] and K₄[Fe(OH)₆] respectively are:

The metal ions that have the calculated spin only magnetic moment value of 4.9 B.M. are A. Cr²⁺ B. Fe²⁺ C. Fe³⁺ D. Co²⁺ E. Mn³⁺ Choose the…

Among, Sc, Mn, Co and Cu, identify the element with highest enthalpy of atomisation. The spin only magnetic moment value of that element in…

Pair of transition metal ions having the same number of unpaired electrons is:

The number of valence electrons present in the metal among Cr, Co, Fe, and Ni which has the lowest enthalpy of atomisation is

The first transition series metal 'M' has the highest enthalpy of atomisation in its series. One of its aquated ion (Mⁿ⁺) exists in green…

The correct decreasing order of spin only magnetic moment values (BM) of Cu⁺, Cu²⁺, Cr²⁺ and Cr³⁺ ions is:

Which of the following electronic configuration would be associated with the highest magnetic moment?

Which of the following statements are correct about Zn, Cd, and Hg? A. They exhibit high enthalpy of atomization as the d-subshell is full.…

How many of the following metal ions have a similar value of spin-only magnetic moment in the gaseous state? {V³⁺, Cr³⁺, Fe²⁺, Ni³⁺} Given:…

Which of the following statements are correct? (A) The M³⁺/M²⁺ reduction potential for iron is greater than manganese. (B) The higher…

For a metal ion, the calculated magnetic moment is 4.90 BM. This metal ion has number of unpaired electrons.

Match List I with List II | List I (Complex) | List II (Colour) | |---|---| | (A) Mg(NH₄)PO₄ | (I) Brown | | (B) K₃[Co(NO₂)₆] | (II) White…