NEET Chemistry d- and f-Block Elements Characteristic Properties MCQs

Which of the following statements contradicts Mendel's laws of inheritance?

If a pure-breeding tall pea plant (TT) is crossed with a pure-breeding dwarf pea plant (tt), what percentage of the F2 generation will be dwarf?

Which concept is NOT explained by Mendel's laws?

In a dihybrid cross between two heterozygous individuals (AaBb x AaBb), what is the probability of offspring having the recessive phenotype for both traits?

The $E^\circ$ value for the $\mathrm{Mn}^{3+} / \mathrm{Mn}^{2+}$ couple is more positive than that of $\mathrm{Cr}^{3+} / \mathrm{Cr}^{2+}$ or $\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}$ due to change of:

Which of the following pairs of ions has a more positive $E^\circ$ value for the M$^{3+}$/M$^{2+}$ couple due to the enhanced stability of the $d^5$ electronic configuration?

The relatively high $E^\circ$ value for the $Mn^{3+}/Mn^{2+}$ redox couple compared to $Cr^{3+}/Cr^{2+}$ and $Fe^{3+}/Fe^{2+}$ is primarily attributed to the:

Explain why the reduction potential of $\mathrm{Mn}^{3+}/ \mathrm{Mn}^{2+}$ is more positive compared to $\mathrm{Cr}^{3+}/ \mathrm{Cr}^{2+}$ and $\mathrm{Fe}^{3+}/ \mathrm{Fe}^{2+}$.

Among the following transitions, which one exhibits the most positive standard electrode potential ($E^\circ$) due to the formation of a stable electronic configuration?

Which of the following pairs of lanthanide ions are diamagnetic?