D And F Block Elements - Inorganic Chemistry - Chemistry Previous Year Questions

The elements in which electrons are progressively filled in \(4 f\)-orbital are called

Oxidation state of copper is +1 in

Incorrect statement with reference to \(\mathrm{Ce}(Z=58)\) is

Which of the following statements is wrong?

A mixture of \(\mathrm{NaCl}\) and \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) is heated with conc. \(\mathrm{H}_2 \mathrm{SO}_4\), deep red vapours are formed. Which of the following statements is false?

For \(\mathrm{Cu}_2 \mathrm{Cl}_2\) and \(\mathrm{CuCl}_2\) in aqueous medium, which of the following statement is correct?

Identify the set of paramagnetic ions among the following.

Which of the following does not represent property stated against it?

Which one of the following is correct for all elements from Sc to Cu?

Which of the following pairs has both the ions coloured in aqueous solution? [Atomic numbers of

$$\mathrm{Sc}=21, \mathrm{Ti}=22, \mathrm{Ni}=28, \mathrm{Cu}=29, \mathrm{Mn}=25]$$

What will be the value of \(x\) in \(\mathrm{Fe}^{x+}\), if the magnetic moment, \(\mu=\sqrt{24} \mathrm{~BM}\) ?

The only lanthanoid which is radioactive

A transition metal exists in its highest oxidation state. It is expected to behave as

Which of the following is correct with respect to melting point of a transition element?

Match the following.

I. $\mathrm{Zn}^{2+}\quad$ (i) $d^8$ configuration

II. $\mathrm{Cu}^{2+}\quad$ (ii) Colourless

III. $\mathrm{Ni}^{2+}\quad$ (iii) $\mu=1.73 \mathrm{BM}$

Which of the following statements related to lanthanoids is incorrect?