Which of the following elements have the similar value of electronegativity?

Important Questions on Classification of Elements and Periodicity in Properties

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

The five successive ionization enthalpies of an element are $800, 2427, 3658, 35024 32824 \mathrm{kJ} {\mathrm{mol}}^{–1}$ . The number of valence electrons in the element is:

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Which of the following orders of ionic radii is correctly represented?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Three elements $\mathrm{X},\mathrm{Y}$ and $\mathrm{Z}$ are in the $3^{\text{rd }}$period of the periodic table. The oxides of$\mathrm{X},\mathrm{Y}$ and $\mathrm{Z}$, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of $\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ is:

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Which of the following arrangements is correct regarding the three types of radii for an atom?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Given that ionization potential and electron gain enthalpy of chlorine are $13\mathrm{eV}$ and $4\mathrm{eV}$ respectively. The electronegativity of chlorine on Mulliken scale, approximately equals to

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Which among the following oxides is the most basic?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

The acidic, basic and amphoteric oxides, respectively, are

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Which of the following has highest hydration energy?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Which of the following indicates the correct variation in eletronegativities?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

In the following sets of reactants which two sets best exhibit the amphoteric character of Al₂O₃ . xH₂O ?

$\begin{array}{cc}\text{Set I}& {\text{Al}}_2{\text{O}}_3·{\text{xH}}_2{\text{O}}_{\left(\text{s}\right)}+{\text{OH}}_{\left(\text{aq}\right)}^{-}\\ \text{Set II}& {\text{Al}}_2{\text{O}}_3\text{x}·{\text{H}}_2{\text{O}}_{\left(\text{s}\right)}+{\text{H}}_2{\text{O}}_{\left(\mathit{\text{l}}\right)}\\ \text{Set III}& {\text{Al}}_2{\text{O}}_3\text{x}·{\text{H}}_2{\text{O}}_{\left(\text{s}\right)}+{\text{H}}_{\left(\text{aq}\right)}^{+}\\ \text{Set IV}& {\text{Al}}_2{\text{O}}_3·{\text{xH}}_2{\text{O}}_{\left(\text{s}\right)}+{\text{NH}}_{3\left(\text{aq}\right)}\end{array}$

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Covalent bond length of a chlorine molecule is $1.98 \stackrel{\mathrm{o}}{\mathrm{A}}$. Covalent radius (in $\stackrel{\mathrm{o}}{\mathrm{A}}$) of chlorine atom is _________

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Identify the correct order of electronegativity for $\mathrm{Mg},\mathrm{B},\mathrm{Si}$ and $\mathrm{S}$.

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Identify the correct statement from the following.

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Match the following :

Oxide	Nature
(a) $\mathrm{CO}$	(i) Basic
(b) $\mathrm{BaO}$	(ii) Neutral
(c) ${\mathrm{Al}}_2{\mathrm{O}}_3$	(iii) Acidic
(d) ${\mathrm{Cl}}_2{\mathrm{O}}_7$	(iv) Amphoteric

Which of the following is correct option?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

$\mathrm{Be}$ and $\mathrm{Al}$ show similarities in properties due to the diagonal relationship except in the property $\mathrm{X}$ given below. What is $\mathrm{X}$?

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Atomic numbers of Vanadium, Chromium, Nickel and Iron are $23, 24, 28$ and $26$ respectively. Which one of these is been expected to have the highest second ionization enthalpy?

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

Elements which have relatively high ionisation energy and occur as sulphides are

HARD

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

The option(s) with only amphoteric oxides is(are):

EASY

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

The electronegativity of the given elements increases in the order

MEDIUM

Chemistry>Inorganic Chemistry>Classification of Elements and Periodicity in Properties>Electronegativity and its Applications

The electronegativities of $N, C, Si$ and $P$ are in the order -