Embibe Experts Solutions for Chapter: d- and f- Block Elements, Exercise 1: AP EAPCET - 3 Sep 2021 Afternoon

Identify the correct statement(s) from the following:
i) There are four $\mathrm{d}$-block series.
ii) Total d-block elements are $40$.
iii) Third d-block series starts with Lanthanum and ends with mercury.
iv) All the d-block members are metals and found in nature.

The outer electronic configuration of Chromium $\left(\mathrm{Cr}\right)$ is

The electronic configuration of a transition element $\mathrm{X}$in $+3$ state is $\left[\mathrm{Ar}\right]3{\mathrm{d}}^6.$ Its atomic number is ______

Which among the following shows most affinity towards haemoglobin?

Identify the correct sequence representing the order of decreasing magnetic moments of the given cations.

$\mathrm{Co}$ is ${27}^{\text{th }}$ element in periodic table. The Electronic configuration and Magnetic moment of its dipositive ion respectively, are

An aqueous solution consists of ${\mathrm{Pb}}^{2+}$ and ${\mathrm{Cu}}^{2+}$ ions. Which of the following reagents is suitable for separating them?

Which one of the following titrations of permanganate does not give satisfactory results?