List of top Chemistry Questions on Transition Elements asked in AP EAPCET

A transition metal ion \(X^{3+}\) has a magnetic moment of \(\sqrt{15}\) BM. The atomic number of the metal \(X\) is

The fusion of chromite ore with \(Na_2CO_3\) in free access of air leads to the formation of yellow coloured solution of compound A and residue B along with the evolution of \(CO_2\) gas. Identify the correct statements regarding A and B.
I. A contains Cr-O-Cr linkage
II. B is \(Fe_2O_3\)
III. Oxidation state of chromium in A is +6

The nature of chromium oxide formed by the thermal decomposition of ammonium dichromate is

Which of the following pairs of ions are not paramagnetic in nature? (Atomic Number: $La=57$, $Ce=58$, $Eu=63$, $Gd=64$, $Tb=65$, $Yb=70$, $Lu=71$)

Which of the following pairs of ions will have same spin only magnetic moment values within the pair?
• [A.] \( \text{Zn}^{2+}, \text{Ti}^{2+} \)
• [B.] \( \text{Cr}^{2+}, \text{Fe}^{2+} \)
• [C.] \( \text{Ti}^{3+}, \text{Cu}^{2+} \)
• [D.] \( \text{V}^{2+}, \text{Cu}^{+} \) Choose the correct answer from the options given below:

Which of the following ions can reduce dilute acid to give hydrogen gas?