The third ionization enthalpy is minimum for:

Important Questions on The d- and f-Block Elements

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 8th April 2019 Shift 2>Q 21

The statement that is INCORRECT about the interstitial compounds is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 8th April 2019 Shift 1>Q 22

The lanthanide ion that would show colour is:

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 7th January 2020 Shift 2>Q 23

Among the statements $\left(\mathrm{a}\right)-\left(\mathrm{d}\right)$ , the incorrect ones are:
$\left(\mathrm{a}\right)$ Octahedral $\mathrm{C}\mathrm{o}\left(\mathrm{I}\mathrm{I}\mathrm{I}\right)$ complexes with strong field ligands have very high magnetic moments
$\left(\mathrm{b}\right)$ When ${∆}_0<P$ , the d-electron configuration of $\mathrm{C}\mathrm{o}\left(\mathrm{I}\mathrm{I}\mathrm{I}\right)$ in an octahedral complex is $t_{eg}^4{e}_g^2$
$\left(\mathrm{c}\right)$ Wavelength of light absorbed by ${\left[\mathrm{C}\mathrm{o}{\left(\mathrm{e}\mathrm{n}\right)}_3\right]}^{3+}$ is lower than that of ${\left[{\mathrm{C}\mathrm{o}\mathrm{F}}_6\right]}^{3-}$
$\left(\mathrm{d}\right)$ If the ${∆}_0$ for an octahedral complex of $\mathrm{C}\mathrm{o}\left(\mathrm{I}\mathrm{I}\mathrm{I}\right)$ is $\mathrm{18,000}\mathrm{c}{\mathrm{m}}^{-1}$, the ${∆}_t$ for its tetrahedral complex with the same ligand will be $\mathrm{16,000}\mathrm{c}{\mathrm{m}}^{-1}$.

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 7th January 2020 Shift 1>Q 24

The atomic radius of $\mathrm{A}\mathrm{g}$ is closest to

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 7th April 2013>Q 25

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

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 6th April 2014>Q 26

The equation which is balanced and represents the correct product(s) is

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 6 September 2020 Shift 2>Q 27

Mischmetal is an alloy consisting mainly of :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 19 - The d- and f-Block Elements>JEE Main - 6 September 2020 Shift 1>Q 28

The INCORRECT statement is :